Solve: x + 3 = –x + 7

Answer:

250 tickets

Step-by-step explanation:

This week, the tickets sold was 300.

The # of tickets sold this week was 120% of last weeks ticket sales.

To find out the number of tickets sold last week, first convert 120% into a decimal.

120% = 1.2

Now, divide 300 [tickets sold this week] by 1.2.

If you do this, you get 250.

That means 250 tickets were sold last week.

To double check our answer, break down 120% again, but this time, differently.

100% + 20% = 120%

100% = 1

20% = 0.2

Now, multiply 250 by 1.

250 x 1 = 250.

Now multiply 250 by 0.2

250 x 0.2 = 50.

250 + 50 = 300

So, the amount of tickets sold last week is 250. I hope this helps! :)

Step-by-step explanation:

√a / (√a - 2)

To rationalize the denominator, you need to multiply the fraction by the conjugate:

√a / (√a - 2) × (√a + 2) / (√a + 2)

√a (√a + 2) / ((√a - 2) (√a + 2))

(a + 2√a) / (a - 4)

Hello There!

We’re just using addition for this.

Image Attached below.

69y is your Answer

Answer:

3,578

Step-by-step explanation:

Add the two values together.  If the bridge is 1,595 feet long, and if each cable holding that is 1,983 feet longer than the length of the bridge then adding them together is the way to go.

1,595+1,983=3,578

To get the length of each cable, you add the length of the bridge (1,595 feet) to the extra length of each cable (1,983 feet), which results in 3,578 feet.

The problem is asking us to work with addition. The bridge is 1,595 feet long and each cable is 1,983 feet longer than the bridge. To find the length of each cable, we add the length of bridge and the extra length of the cable. That is, we add 1,595 feet (length of bridge) to 1,983 feet (extra length of cable).

https://brainly.com/question/35006189

#SPJ11

Answer:

The correct answer is C.

Step-by-step explanation:

When you multiply a real function by -1 you only change its sign in all the domain of definition. The positive part becomes negative, and the negative values becomes positive and the zeros are unaltered. So, it is no difficult to see that the multiplication by -1 is equivalent to make a reflection with respect to the x - axis.

It would take 7 hours.

If you are going at 45 miles per hour, you need to find out how much 45 goes into 315.

To deduce this, divide 315 by 45.

315/45=7

It would take 7 hours.

Hope this helps!

Answer:

7 hours

Step-by-step explanation:

Write it out like a ratio X/315 = 1/45

Let X be hours

Cross multiply 315 x 1

and 45 x X -------> this gives you 315 = 45X

Then simply divide both sides by 45 and you get 7 hours

they paid 30, 10 + 10 + 10.

the manager refunded them 5, 30 - 5 = 25.

the bellboy took 2, gave them 3 only.

since the bellboy gave only 3 to friends, then they paid 10 + 10 +10 - 3 = 27, if we include the 2 the bellboy kept, then that makes it 27 - 2 = 25.

we're not adding the $2 kept by the bellboy, we're subtracting it from the $27.

Answer:

The answer is 16.

Step-by-step explanation:

In this expression 4-2/2^-3, first of all we will solve the numerator.

Subtract 4 and 2

4-2= 2

So, the expression will become 2/2^-3

Now notice that the numerator has the base 2 and exponent 1 where as the denominator has the base 2 and exponent -3. Both the numerator and denominator have the same base

So we will use the property a^m/a^n=a^m-n.

=2/2^-3

=2^1-(-3)

=2^1+3

=2^4

2^4 means that 2 will be multiplied 4 times.

=2*2*2*2

=16

Thus the answer is 16....

Answer:

12x^2 + 28x = 0

3x^2 + 7x = 0

x(3x+7)=0

x=0 or

3x+7=0

3x= - 7

x= - 7/3

Answer:

4x(3x + 7)

Step-by-step explanation:

Given

12x² + 28x ← factor out 4x from each term

= 4x(3x + 7) ← in factored form

Answer:

The price is $1.6 per square foot of the land

Step-by-step explanation:

step 1

Find the area of the plot of land

we know that

The area of the plot of land is equal to the area of trapezoid 1 plus the area of trapezoid 2

see the attached figure to better understand the problem

Remember that

The area of a trapezoid is equal to

[tex]A=\frac{1}{2}[b1+b2]h[/tex]

Find the area of trapezoid 1

we have

[tex]b1=125\ ft[/tex]

[tex]b2=265\ ft[/tex]

[tex]h=260-150=110\ ft[/tex]

substitute

[tex]A1=\frac{1}{2}[125+265](110)[/tex]

[tex]A1=21,450\ ft^{2}[/tex]

Find the area of trapezoid 2

we have

[tex]b1=150\ ft[/tex]

[tex]b2=265\ ft[/tex]

[tex]h=150\ ft[/tex]

substitute

[tex]A2=\frac{1}{2}[150+265](150)[/tex]

[tex]A2=31,125\ ft^{2}[/tex]

The area total of the land is

[tex]A=A1+A2[/tex]

[tex]A=21,450+31,125=52,575\ ft^{2}[/tex]

step 2

Find the price per square foot of the land

Divide the total cost by the total area

[tex]\frac{84,120}{52,575}=1.6\frac{\$}{ft^{2}}[/tex]

Answer:  3.50x + 4.00y ≤ 45

                0 < y < 11.25

Step-by-step explanation:

[tex]3.50x + 4.00y \leq 45\\\\\\\text{Subtract 3.50x from both sides:}\\4.00y\leq -3.50x+45\\\\\\\text{Divide everything by 4.00 (to isolate y):}\\\dfrac{4.00y}{4.00}\leq \dfrac{-3.50x}{4.00}+\dfrac{45}{4.00}\\\\\\y\leq-0.875x+11.25\\\\\\\text{Both x and y must be greater than zero, so:}\\0<y<11.25[/tex]

[tex]3\cdot3\cdot4\cdot4=144[/tex]

Answer:

[tex]r \parallel s[/tex] by the Converse of the Alternate Interiors Angles Theorem.

Step-by-step explanation:

Remember that two lines are parallel if their angle of direction is the same.

So, in this case we know that [tex]m\angle 3 = m\angle 6[/tex], where [tex]\angle 3[/tex] is the direction of [tex]r[/tex] and [tex]\angle 6[/tex] is the direction of [tex]s[/tex].

Therefore, [tex]r \parallel s[/tex] by the Converse of the Alternate Interior Angles Theorem, which states that if two lines are cut by a transversal and the alternate interior angles are congruent, then those lines are parallel.

Same side interior angles are supplementary, which means together they add up to 180 degrees.

In order to find the value of angle m, subtract 180 from the supplement.

180 - 78 = 102

The value of m is 102 degrees

Answer:

C.m=102

Step-by-step explanation:

The two angles are alternate interior angle, those angles add up to 180, 180-78=102. The answer is c

Answer:

n-8

Step-by-step explanation:

Let

n ----> the number

we know that

To find the difference of a number and 8, subtract  8 from the number

so

n-8

Answer:

I b3live it is 50 miles/hour

Step-by-step explanation:

We need to know how many miles he drove from 9:00 to 10:30 so you do 150-75 which is 75. Then, you do 75÷1.5 because 9:00 and 10:30 are an hour and a half apart and then you get 50 mph.

Answer:

Step-by-step explanation:

Distribute...

6x^2-3x-6x+3

6x^2-9x+3 is the expanded equation

The solution....

(3x-3)=0

(2x-1)=0

3x=3

2x=1

x=1

x=1/2

Answer:

Negative Correlation

Explanation:

As the points progress by + x, the general pattern is to decrease in y.

Slope = m = rise/run = x/y

+x/-y = x/-y = -x/y. Negative correlation

Answer:

D and E

Step-by-step explanation:

because the rule to make triangle is

a<b+c with a, b and c is the side of the triangle

Answer:

Step-by-step explanation:

I just did it nothing to explain :D

Answer:

No

Step-by-step explanation:

For a right triangle, a^2+b^2=c^2 EVERY time.

a and b are always smaller than c, so 7 and 12 are a and b, and 17 is c:

7^2+12^2 ?= 17^2

49+144 ?= 289

193 != 289

Therefore, these can't be the set of lengths for a right triangle

Answer:

These set of lengths cannot be the side lengths of a right angled triangle.

Step-by-step explanation:

Pythagoras Theorem is always followed by a right angled triangle. According to which the sum of squares of the two shorter legs is equal to the square of the longest leg.

[tex]a^2=b^2+c^2[/tex]

So here, 17 is the longest leg and 7 and 12 the shorter ones.

Applying Pythagoras Theorem to these lengths to find out.

[tex]17^2=7^2+12^2[/tex]

[tex]289\neq 193[/tex]

Therefore, these set of lengths cannot be the side lengths of a right angled triangle.

Answer:

[tex]\boxed{2a+3-b}[/tex]

Step-by-step explanation:

Distributive property:

    ↓

A(B+C)=AB+AC

Remove parenthesis first.

7-(a-b)-4+3a-2b

(-a-b)=-a+b

7-a+b-4+3a-2b

Simplify, to find the answer.

7-a+b-4+3a-2b

Group like terms:

 ↓

-a+3a+b-2b+7-4

Add numbers from left to right.

-a+3a=2a

2a+b-2b+7-4

b-2b=-b

2a-b+7-4

Adding and subtracting numbers from left to right.

7-4=3

2a+3-b

[tex]2a+3-b[/tex], which is our answer.

Answer:

3 +2a -b

Step-by-step explanation:

7-(a-b)-4+(3a-2b)

Distribute the minus

7 -a +b -4 +3a-2b

Combine like terms

7-4  -a +3a +b-2b

3 +2a -b

Answer:

5

Step-by-step explanation:

Find the degree of each monomial term of the polynomial. The highest degree is the answer.

deg(3x^4)=4

deg(-4x^3y)=3+1=4

deg(6x^2y^2)=2+2=4

deg(-8x^2y^3)=2+3=5

deg(-7y^4)=4

deg(2)=0

The highest degree there is 5 so that is the degree of the polynomial.

The degree of a polynomial is the highest power of any variable in that polynomial. For the polynomial 3x⁴-4x³y+6x²y²-8x²y³-7y⁴+2, because the highest power is 4, the degree of the polynomial is 4.

The highest exponent of the variable in a polynomial determines its degree. In the provided polynomial, 3x⁴-4x³y+6x²y²-8x²y³-7y⁴+2, the degree of this polynomial is 4 because the highest power of the variable is 4. which can be seen in the terms 3x⁴ and -7y⁴.

It's important to note that while determining the degree of a polynomial, we consider the power (or degree) of individual terms and not their combined power. For example, in the term -4x³y, x has a degree of 3 and y has a degree of 1. The degree of -4x³y will still just be 3 (and not 4) as we only consider the highest degree within that term.

https://brainly.com/question/29182596

#SPJ3

Answer: The slope is 5

Step-by-step explanation:

You can calculate the slope of the line with this fomula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Given the points (2,3) and (1,-2), you can identify that:

[tex]y_2=-2\\y_1=3\\x_2=1\\x_1=2[/tex]

Now, the final step is to substitute these values into the formula  [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex], getting that the slope of this line is:

 [tex]m=\frac{-2-3}{1-2}[/tex]

[tex]m=\frac{-5}{-1}\\\\m=5[/tex]

Answer:

M = 5X

Step-by-step explanation:

use the slope of a line equation

[tex]m \: = \frac{y2 - y1}{x2 - x1} [/tex]

so plug in your x and y's

[tex] m = \frac{ - 2 - 3}{1 - 2} [/tex]

m = 5x

remember negative devided by negative is a positive. also dont forget to add your x at the end.

Answer:

Maybe 13

Step-by-step explanation:

Im not sure from the answer

Answer:

B

Step-by-step explanation:

Use the distance formula, that is

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = A(- 3, - 2) and (x₂, y₂ ) = (0, 0)

d = [tex]\sqrt{(0+3)^2+(0+2)^2}[/tex]

  = [tex]\sqrt{3^2+2^2}[/tex] = [tex]\sqrt{9+4}[/tex] = [tex]\sqrt{13}[/tex]

Answer:

Step-by-step explanation:

If you spend 5/6 of your wages, you'll have 1/6 of your wages left, hopefully to be placed into your savings account.

If your wages are $60, you'd have 1/6 of that, or $10, left.

                             $120,                                            $20.

                              $180,                                            $30

                               $300,                                           $50

Answer:

(f - g)(x) = 37 - x

Step-by-step explanation:

(f - g)(x) = (27 +3) - (x - 7)

            = 27 + 3 - x + 7

            = 37 - x

Answer:

Step-by-step explanation:

(f - g)(x) = f(x) - g(x)

We have f(x) = 27x + 3 and g(x) = x - 7. Substitute:

(f - g)(x) = (27x + 3) - (x - 7)

(f - g)(x) = 27x + 3 - x - (-7)

(f - g)(x) = 27x + 3 - x + 7             combine like terms

(f - g)(x) = (27x - x) + (3 + 7)

(f - g)(x) = 26x + 10

Answer:

Graph of a solid vertical line 2 units to the right of the origin with everything shaded to the left.

Step-by-step explanation:

The solid line shows it is greater than or equal to. Shade to left of vertical line if less than and right of it if greater than.

Answer:

A graph of a solid vertical line 2 units to the right of the origin with everything shaded to the right.

Step-by-step explanation:

The inequality x≤ 2 means that for any coordinate picked to the left of the line x=2 including 2 satisfies the argument for x. The less than or equal to sign means the value of x is 2 or less.

If for example you pick (2,5) or even (-1,150), the x coordinate satisfies the inequality.

Answer:

9

Step-by-step explanation:

The factors of 9 are: 1, 3, 9

The factors of 45 are: 1, 3, 5, 9, 15, 45

Then the greatest common factor is 9.

The GCF of 45 and 9 is 9.

To find the greatest common factor we need to prime factorize 9 and 45 and then find the product of the factors common between the two. This can be represented mathematically as follows:

[tex]45 = 3 \times 3 \times 5\\9 = 3 \times 3[/tex]

Thus we can see that two pair of 3 are common factors between 9 and 45. Thus the GCF [tex]= 3 \times 3 = 9[/tex]

Therefore, the GCF of 45 and 9 is 9.

Answer:

$120,000

Step-by-step explanation:

It's easy ,

all you got to do is just minus $300,000  from $180,000  so it'll be :

$300,000 − $180,000 = $120,000  

$120,000 Will be your answer !

Answer:

$120,000

It's easy ,

all you got to do is just minus $300,000  from $180,000  so it'll be :

$300,000 − $180,000 = $120,000  

$120,000 Will be your answer !

Step-by-step explanation: