Evan washes two types of vehicles. It takes him 30 minutes to wash a car and 40 minutes to wash a truck. He charges $12 to wash a car and $15 to wash a truck. In 270 minutes, Evan made $105 washing cars and trucks. How many trucks did Evan wash? 2 trucks 3 trucks 4 trucks 5 trucks

Answers

Answer 1
The correct answer is 3 trucks.
Answer 2
The answer is 3 trucks

Related Questions

The median of the values of the data set is h. If 625 were subtracted from each of the values in the data set what would be the median of the resulting data ?

A. H - 625
B.625 - h
C.h + 625
D.625 • h

Answers

b
it always turns to a negative

The correct answer is A. H - 625.

Sure, let's go step by step to find the correct answer.

Given:

- Median of the original data set = h

- Subtracted 625 from each value in the data set

Let's represent the original data set as {x1, x2, x3, ..., xn} where n is the number of values in the data set.

1. Median of the original data set:

The median of a data set is the middle value when the values are arranged in ascending or descending order. Since the data set has been modified by subtracting 625 from each value, the new data set would be {x1 - 625, x2 - 625, ..., xn - 625}.

2. Median of the modified data set:

If we subtract 625 from each value, it doesn't affect the relative order of the values. Therefore, the median of the modified data set would also be h.

So, the correct answer is A. H - 625.

The median represents the middle value in a sorted data set. When we subtract a constant (625 in this case) from each value in the data set, it shifts the entire set downwards without changing the order of values relative to each other. Therefore, the position of the middle value, which determines the median, remains the same. This means the median of the modified data set will still be h.

complete question

The median of the values of the data set is h. If 625 were subtracted from each of the values in the data set what would be the median of the resulting data ?

A. H - 625

B.625 - h

C.h + 625

D.625 • h

What is the point slope form of a line with slope 4/5 that contains the points -2,1

Answers

y - y1 = m(x - x1)
slope(m) = 4/5
(-2,1)....x1 = -2 and y1 = 1
now we sub
y - 1 = 4/5(x - (-2) =
y - 1 = 4/5(x + 2) <===

Answer:

[tex]y-1= \frac{4}{5} (x+2)[/tex]  

Step-by-step explanation:

Using point-slope intercept form:

The equation of line is given by:

[tex]y-y_1 = m(x-x_1)[/tex]              .....[1]

where,

m is the slope of the line and [tex](x_1, y_1)[/tex] is the point on the line.

As per the statement:

A line with slope 4/5 that contains the points (-2,1)

⇒m = [tex]\frac{4}{5}[/tex] and [tex](x_1, y_1)=(-2, 1)[/tex]

Substitute these values in [1] we have;

[tex]y-1= \frac{4}{5} (x+2)[/tex]  

Therefore, [tex]y-1= \frac{4}{5} (x+2)[/tex]  is the point slope form of a line with slope 4/5 that contains the points (-2,1).

True or false? If four points are collinear, they are also coplanar

Answers

If we are given four points, it can be the case that the points are found in the same line or called collinear lying on the same axis. However,  it is not  a guarantee that those points are also coplanar. Yes, four points can create a plane but not at all time they are also collinear.

We have that the statement  If four points are collinear, they are also coplanar is

True

From the Question we are told that

four points are collinear

Collinear

This occurs when three or more lines lines on the same plane or line

While

Coplanar is when simply means on the same plane

Therefore

If four points are collinear, they are also coplanar

For more information on this visit

https://brainly.com/question/20746649?referrer=searchResults

It takes 33 pounds of seeds to completly plant a 6 acre field. how many acres can be planted per pound of seed

Answers

If it takes 33 pounds of seeds to plant a 6 acre field; 

6/33=2/11 or 0.1818 

One pound of seeds would be able to plant 2/11 of an acre. 

Hope I helped :) 


multiply (X-Ai)(X+Ai)

Answers

your answer should be -

-a2i2+x2

i hope that's right!

can someone solve this problem for me? Show me your steps to solve this problem as well.

Answers

[tex]\bf 3^x=81\qquad \begin{cases} 81=3\cdot 3\cdot 3\cdot 3\\ \qquad 3^4 \end{cases}\implies 3^x=3^4\implies x=4[/tex]

if their base is the same, the exponents must also be the same for the equation to be true.

sweet t has 2 orange picks for every 5 green. I f there are 21 picks in all, how many picks are orange?

Answers

if there are 21 picks, 6 are orange
I think the answer would be 6 orange.

Classify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3)

A) quadratic function; quadratic term: 6x^2; linear term: 24x; constant term: −6

B) linear function; linear term: −21x; constant term: −6

C) quadratic function; quadratic term: −18x^2; linear term: −21x; constant term: −6

D) linear function; linear term: −18x^2; constant term: −6

Answers

believe the answer is d, though I’m not completely sure. hope this helps

Answer:

The correct Option is C).  quadratic function; quadratic term: −18x²; linear term: −21x ; constant term: −6

Step-by-step explanation:

Given : f(x) = (3x + 2)(-6x - 3)

Now, f(x) = -18x² -9x -12x - 6

⇒ f(x) = -18x² - 21x - 6

Now, since the highest degree of the given function f(x) is 2 so the function f(x) is quadratic.

Now, quadratic term is one which has highest power x = 2 So, quadratic term = -18x²

Linear term is one which has  power x = 1 So, linear term = -21x

Constant term is one which has power of x = 0. So, constant term = -6

Hence, The correct Option is C).  quadratic function; quadratic term: −18x²; linear term: −21x ; constant term: −6

HELP MATH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

it can be the line of best fit because it shows a negative linear association .

line B

A negative nonlinear association

last pg d













Solve the inequality for x

20x > 8(4x - 5) - 20

Answers

Hi there! I can help you with this! First, let's combine like terms and do everything for the right side of the problem. When you do the distributive property, you get 32x - 40. Combine like terms and you'll get 32x - 60. Now, the inequality is 20x = 32x - 60. First, let's subtract 32x from both sides to get the integer by itself. When you do that, you get -12x = -60. Now, divide each side by -12 to isolate the "x". -60/-12 is 5. Let's plug it in. 20 * 5 is 100. 32 * 5 is 160. 160 - 60 is 100. 100 = 100. There. x = 5.

Answer:

its -5 not five

Step-by-step explanation:

For a store contest, four out of every 65 people who visit the store will receive a free DVD. If 455 people visit the store, how many DVDs were given away

Answers

maybe try 455 / 65??

Which of the following is the linear parent function

Answers

The linear parent function is f(x) = x or y = x. We can scale it to get y = mx and then shift it around to get y = x+b. Combine the scaling and shifts and we have y = mx+b as the slope intercept form template.

Answer: Choice C) f(x) = x
Answer:

Option: C is the correct answer.

              C.)  F(x)= x

Step-by-step explanation:

We know that a linear parent function is a function whose graph is a straight line passing through the origin and the equation of such a function is given by:

                                y=F(x)=x

Since, it is the simplest form of the equation of all the linear functions that are known to us and hence known as the parent linear function.

What is the class rank if someone has the 40th best GPA in his class of 600?

Answers

The rank would be 40 out of 600, or 40th
The rank would be 40 out of 600, or 40thhope this helps:D

write the polynomial in standard form. Then name the polynomial based on its degree and the number of terms. 6-2x^3-3x+6x^3

Answers

The polynomial in standard form would be 4x^3 - 3x + 6.

The degree of the polynomial is 3, which makes it a cubic trinomial.

Edit: made a small error.

What is the answer to 7x+3y=8 solve for y

Answers

7x+3y=8 subtract 7x to both sides
3y=-7x+8 divide by 3
y=-7/3x+8/3
7x+3y=8
3y=8-7x
y=8/3-7x/3
hope this answers the question:)

What’s the answer ????

Answers

the answer is b. it is simply the only reasonable answer 

Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of these angles is 72 degrees, what are the measures of the other three angles. Explain your answer

Answers

they need to equal 180 degrees

180-72 = 108 degrees


Answer: 108, 108, and 72 degrees

Step-by-step explanation:

Angle A = 72

Angle B = Angle D

Angle C = 72 (Since it is congruent to Angle A)

Angle D = Angle B

Since Angle A and C are congruent, so are angles B and D. Now you would have to subtract 72 from 180.

180 - 72 = 108

Angle A = 72

Angle B = 108

Angle C = 72

Angle D = 108

Is 50 degrees celsius hotter than 50 degrees fahrenheit?

Answers

50 degrees Celsius is half way between freezing and boiling so 50 degrees celsius is hotter then 50 degrees fahrenheit 
Final answer:

50 degrees Celsius is hotter than 50 degrees Fahrenheit because the Celsius scale rises at a faster rate of 1.8 times the Fahrenheit scale per degree, which measurably shows the greater warmth of 50°C compared to 50

Explanation:

Yes, 50 degrees Celsius is hotter than 50 degrees Fahrenheit. To understand why, let's look at how temperature is measured on both scales. On the Celsius scale, the freezing point of water is 0°C and the boiling point is 100°C, whereas on the Fahrenheit scale, the freezing point is 32°F and the boiling point is 212°F. This means that 100 Celsius degrees cover the same range as 180 Fahrenheit degrees.

The rate at which temperature increases per degree is faster on the Celsius scale compared to the Fahrenheit scale. Specifically, each degree on the Celsius scale corresponds to a 1.8 times larger temperature change than one degree on the Fahrenheit scale. Therefore, a temperature of 50°C is significantly warmer than 50°F. so, 50°C is equivalent to 122°F, a fact made evident by the conversion formula: °F = (°C × 9/5) + 32.

Can someone please help me with math

Answers

To convert [tex] \frac{198\ meters}{1 \ hour} \ to \ \frac{X\ meters}{1 \ minute} \\ Change\ the\ 1\ hour\ to\ 60\ minutes.\ Then\ Cross\ multiply. \\ You\ get\ the\ equation\ 60x = 198\\ Divide.\\ You\ get\ \frac{3.3 \ meters}{1 \ minute} [/tex]
1km = 1000m
198km = 198,000 m

1 hour = 3600 seconds

so
198,000/ 3600 = 55 m/s
2 s = 55(2) = 110 m

answer
rate =  55 m/s
if 2 s, then 110 m

40 students, 21 like math, 18 like science, of those who like math, 14 also like science. how many students like neither science or math

Answers

1 student did not vote for science or math.

A cereal manufacturer decides to offer a new family-sized box based on the regular-sized box. They want the volume of the family-sized box to be three times the volume of the regular-sized box. However, they want the length of the family-sized box to be the same as the regular-sized box. If they decide to double the width to create the family-sized box, by what factor must they increase the height?

Answers

volume = l x w x h

 to increase volume by 3 you would have  3*l*w*h

so 3*l*w*h= l*2*w* x *h  ( x is the scale factor)

cancel out the l w and h on both sides

3 = 2x 

Divide both sides by 2   

 x = 3/2 = 1.5

 the height should increase by a factor of 1.5

Answer:

3/2 or 3 over 2

Step-by-step explanation:

A cereal manufacturer decides to offer a new family-sized box based on the regular-sized box.

They want the volume of the family-sized box to be three times the volume of the regular-sized box. However, they want the length of the family-sized box to be the same as the regular-sized box.

If they decide to double the width to create the family-sized box, by what factor must they increase the height?

Odyssey Question

Which of the following equations will yield the surface area of a triangular prism?
A. SA = 2lw + 2lh + 2wh
B. SA = lwh
C. SA = 2B + Ph
D. SA = Bh

Answers

i believe the answer is c

Final answer:

The correct formula for the surface area of a triangular prism is SA = 2B + Ph, where B is the area of one triangular base, P is the perimeter of this base, and h is the height of the prism.

Explanation:

To find the surface area of a triangular prism, we don't use any of the formulas mentioned for the area of a triangle or volume. The correct formula is one that combines the area of the base triangles and the rectangles formed by the sides of the prism. In this case, the correct formula is SA = 2B + Ph, where B represents the area of one of the triangular bases, P is the perimeter of the triangular base, and h is the height of the prism that is perpendicular to the bases.

Let's clarify the correct formula with an example: Imagine a triangular prism with a triangular base having sides of lengths 3m, 4m, and 5m, and a height of 6m. To find the base area B, you'd use the formula for the area of a triangle, which is B = bh/2, where b is the base and h is the height of the triangle. The perimeter P would simply be the sum of the sides of the triangular base. The surface area would then be calculated by plugging these values into the SA = 2B + Ph formula.

What is the area of a rectangle with vertices at (−3, −1) , (1, 3) , (3, 1) , and (−1, −3) ?

Enter your answer in the box. Do not round any side lengths.


___units²

Answers

Hiya,

So I did this quiz just now and I have the answers. c:


1.) What is the area of a rectangle with vertices at 

(−3, −1)(−3, −1) , (1, 3)(1, 3) , (3, 1)(3, 1) , and (−1, −3)(−1, −3) ?

Enter your answer in the box. Do not round any side lengths.

Answer: 16 Units


2.) What is the perimeter of the rectangle shown on the coordinate plane, to the nearest tenth of a unit?

Answer: 26.8 Units


3.) What is the area of a triangle with vertices at 

(0, −2) ,  ​ (8, −2) ​ , and ​ (9, 1) ​ ?

Enter your answer in the box.

Answer: 12 Units

4.) What is the perimeter of the triangle shown on the coordinate plane, to the nearest tenth of a unit?
Answer: 21.6 Units

5.) 
What is the perimeter of a polygon with vertices at 

(−2, 1) , ​ (−2, 4) ​,  (2, 7) , ​ (6, 4) ​, and (6, 1) ​?

Enter your answer in the box. Do not round any side lengths.​

Answer: 24 Units


I really hope this helps! Let me know if it did... or anyone else that used this info!

The length of the side joining points (-3, -1) and (1, 3) is given by

[tex]l= \sqrt{(1+3)^2+(3+1)^2} \\ \\ = \sqrt{4^2+4^2} = \sqrt{16+16} \\ \\ = \sqrt{32} [/tex]

The length of the side joining points (1, 3) and (3, 1) is given by

[tex]w= \sqrt{(3-1)^2+(1-3)^2} \\ \\ = \sqrt{2^2+(-2)^2} = \sqrt{4+4} \\ \\ = \sqrt{8}[/tex]

The area of a rectangle is given by length times width.

Thus, the area of the given rectangle is given by

[tex]Area=l\times w \\ \\ = \sqrt{32} \times \sqrt{8} \\ \\ = \sqrt{32\times8} = \sqrt{256} \\ \\ =\bold{16} \ units^2[/tex]

A circle has an area of 153.86 square inches. Using 3.14 for pi, find the radius and circumference of the circle. Round your answer to the nearest hundredth when necessary.

Answers

Final answer:

To determine the radius and circumference of a circle with an area of 153.86 square inches, one must first divide the area by 3.14 to solve for r², then take the square root to find the radius, and finally use the radius to calculate the circumference. The radius is approximately 7.00 inches, and the circumference is approximately 43.96 inches.

Explanation:

To find the radius and circumference of a circle with an area of 153.86 square inches, we first use the formula for the area of a circle, which is A = πr². Given that A is 153.86 and π is approximately 3.14, we can rearrange the formula to solve for the radius (r) as follows:

Divide the area by π:  r² = A / π = 153.86 / 3.14.Take the square root of the result to find the radius: r = √(r²).Use the radius to calculate the circumference using the formula C = 2πr.

Performing the calculations, we get:

r² = 153.86 / 3.14 = 48.99r = √(48.99) ≈ 7.00 inches (rounded to the nearest hundredth)C = 2 * 3.14 * 7.00 ≈ 43.96 inches (rounded to the nearest hundredth)

Therefore, the radius of the circle is approximately 7.00 inches, and the circumference is approximately 43.96 inches.

Final answer:

To find the radius from the area of a circle, use the formula r = sqrt(A/pi), with A = 153.86 sq inches and pi as 3.14. Once the radius is determined, calculate the circumference with the formula C = 2*pi*r. Both values should respect the significant figures.

Explanation:

The student is asking for help finding the radius and circumference of a circle given its area using 3.14 for pi. To find the radius, we start with the area formula for a circle, which is A = πr². Given the area A as 153.86 square inches, and using 3.14 for π, the radius r can be found by rearranging the formula to r = √(A/π). Plugging the numbers in, we get r = √(153.86/3.14), which we then calculate.

Once we have the radius, we can find the circumference C of the circle using the formula C = 2πr. Now that we know the radius, we plug the value into this formula to get the circumference.

Both radius and circumference should be calculated carefully, keeping in mind significant figures. The radius should then be used to calculate the circumference, which will be limited by the same degree of precision.

Samatha has 80$ dollars in savings. She spends 1/4 of her money. How much money does she still have saved ?

Answers

80 * 1/4 = 80 /4 = 20

80-20= 60

 she has 60 dollars saved still

A general contractor is constructing a building that requires a concrete foundation that is to be 20 feet by 12 feet and 4 inches thick. if the local home supply store sells concrete for $125 per cubic yard, what will be the cost of the concrete for the foundation?

Answers

First we calculate the volume of the foundation:

Volume (V) = 20 ft * 12 ft * 4 in (1 ft / 12 in)

V = 80 ft^3

 

Since the cost is in cubic yard (yard^3) so convert:

V = 80 ft^3 * (1 yard^3 / 27 ft^3) = 2.963 yard^3

 

So the total cost is:

cost = ($125 / yard^3) * 2.963 yard^3

cost = $370.37

Answer:

$370.37.

Step-by-step explanation:

We have been given that a general contractor is constructing a building that requires a concrete foundation that is to be 20 feet by 12 feet and 4 inches thick.

First of all, we will convert the given dimensions of foundation in yards.

[tex]\text{3 feet}=\text{1 yard}[/tex]

[tex]20\text{ feet}=\frac{20}{3}\text{ yards}[/tex]

[tex]12\text{ feet}=\frac{12}{3}\text{ yards}[/tex]

[tex]\text{36 inches}=\text{1 yard}[/tex]

[tex]\text{4 inches}=\frac{4}{36}\text{ yards}=\frac{1}{9}\text{ yards}[/tex]

Since the foundation of building is in form of cuboid, so volume of foundation will be the product of 3 sides.

[tex]\text{Volume of foundation}=\frac{20}{3}\text{ yards}\times \frac{12}{3}\text{ yards}\times \frac{1}{9}\text{ yards}[/tex]

[tex]\text{Volume of foundation}=\frac{20\times 12\times 1}{3\times 3 \times 9}\text{ yards}^3[/tex]

[tex]\text{Volume of foundation}=\frac{240}{81}\text{ yards}^3[/tex]

[tex]\text{Volume of foundation}=2.962962962962963\text{ yards}^3[/tex]

Since the local home supply store sells concrete for $125 per cubic yard, so the cost of the concrete for the foundation will be the volume of foundation times $125.

[tex]\text{The cost of the concrete for the foundation}=2.962962962962963\text{ yards}^3\times \frac{\$125}{\text{ yards}^3}[/tex]

[tex]\text{The cost of the concrete for the foundation}=\$370.37037\approx \$370.37[/tex]

Therefore, the cost of the concrete for the foundation is $370.37.

what is the slope of a line that is perpendicular to a line whose equation is
-2y = 3x + 7?

Answers

-2y=3x+7
-y=1.5x+3.5
-y=-2/3x+3.5
2/3 is the slope the reciprocal of -3/2 is 2/3 when you solve y=my+b

Please answer VVVV
Convert 1.580 hectoliters to deciliters.

Answers

1.580 converted to deciliters is 1,580






Hope this helps:) Have a Good Evening:), ~Nana~!

The value of 1.580 hectoliters in decilitres will be 1580.

What is unit conversion?

Unit conversion is the process of changing a quantity's measurement between different units, usually using multiplicative conversion factors.

The same attribute is expressed using a unit conversion but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given that the fluids have a value of 1.580 hectoliters.

The value of hectoliters in deciliters will be converted as below,

1 hectoliters = 1000 deciliters

1.580 hectoliters = 1.580 x 1000 deciliters

1.580 hectoliters = 1580 deciliters

Therefore, the value of 1.580 hectoliters in decilitres will be 1580.

To know more about unit conversion follow

brainly.com/question/97386

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2.
Solve: 2(x + 1) = 2x + 2 (4 points)

a) All Real Numbers

b) No Solution

c) 0

d) 1

Answers

A. All real numbers bc 2x +2 is equal to 2x +2, so u could plug any number in for x and it will still be equal

Answer: A) all real numbers

Step-by-step explanation: I got it right on my quiz I’m also FLVS.

Jeniffer has $16 in her piggy Bank . She has 4 times more than her sister Christy . How mucho money dos Christy have in her piggy Bank ?

Answers

Christy has 4 dollars because 4 times 4 equals 16



Hope this helps!

Plz give me Brainliest answer
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