Number 10 find x
I don’t know how to find the answers

Tammy does walk a time of  3.75 hours

Explanation:

Given-

Speed, (which can be represented as  s) = 2 miles/hour

Distance, (which can be represented as d) = 7.5 miles of distance .

Time, t = ?

We know,

d = s t

7.5 miles of distance  = 2 miles/hour × t

3.75 hour of time  = t

Therefore, Tammy does walk a time of  3.75 hours

Answer:

x = 4

Step-by-step explanation:

Given

13 - 4x = 1 - x ( add x to both sides )

13 - 3x = 1 ( subtract 13 from both sides )

- 3x = - 12 ( divide both sides by - 3 )

x = 4

Answer:7,200 mph

Step-by-step explanation:

36,000 divided by 5

Answer:

(Depends on the measurement of speed you are asking for)

7,200 Miles per hour, or 11587.28 Kilometers/hour.

Step-by-step explanation:

Divide 36,000 miles by 5 hours, and you get 7,200 per hour out of the five. Now you have the speed in miles per hour.

Hope that answered your question :)

Answer:

Step-by-step explanation:

[tex]k^2+5k+6=k^2+2k+3k+6=k(k+2)+3(k+2)\\\\=(k+2)(k+3)[/tex]

Other method:

[tex]k^2+5k+6=(k+2)(k+x)\qquad\text{use}\ FOIL\\\\k^2+5k+6=(k)(k)+(k)(x)+(2)(k)+(2)(x)\\\\k^2+5k+6=k^2+kx+2k+2x\\\\k^2+5k+6=k^2+(x+2)k+2x\Rightarrow x+2=5\ \wedge\ 2x=6\\\\x+2=5\qquad\text{subtract 2 from both sides}\\x=3\\\\2x=6\qquad\text{divide both sides by 2}\\x=3[/tex]

Answer:

The population density in people per square meter is 0.005377 people per square meter.

Answer: [tex]0.005377\frac{people}{m^{2}}[/tex]

Step-by-step explanation:

You want to convert [tex]\frac{people}{km^{2} }[/tex] to [tex]\frac{people}{m^{2}}[/tex]

To do this, multiply [tex]\frac{people}{km^{2} }[/tex] * [tex]\frac{1 km}{1000 m}[/tex] * [tex]\frac{1 km}{1000 m}[/tex]=[tex]\frac{people}{1000 * 1000 m^{2}}[/tex]

sub in 5377 for people to get

[tex]\frac{5377people}{1000 * 1000 m^{2}}=0.005377\frac{people}{m^{2}}[/tex]

Answer:

Yes

Step-by-step explanation:

Answer:

43.5 inches

Step-by-step explanation:

we know that

The approximate total length of iron edging needed to create the square frame and the two diagonals is given by the formula

[tex]L=4b+2d[/tex]

where

b is the length side of the square

d is the diagonal of the square

we have

[tex]d=9\ in[/tex] ----> given problem

Find the value of b

Remember that the diagonal in a square is given by

[tex]d=b\sqrt{2}\ in[/tex]

substitute the given value of d

[tex]9=b\sqrt{2}[/tex]

solve for b

[tex]b=\frac{9}{\sqrt{2}}\ in[/tex]

Find the total length

[tex]L=4(\frac{9}{\sqrt{2}})+2(9)=43.5\ in[/tex]

Answer:

43.5 in

Step-by-step explanation:

ed said it was right lol

Answer:

The answer would be $9 dollars per hour.

Step-by-step explanation:

Let's start off with getting the basics down. She babysits for 2 hours each night for 10 total nights, so we would multiply the two and get 20 hours of babysitting service. We would then take $180 and divide the total money amount by the number of hours to get your money per hour. In this case, the answer is $9 per hour.

Answer:

Bluetooth = $41

Car Phone = 17

Step-by-step explanation:

Answer:

the bluetooth was $35 and the carphone was $23.

Step-by-step explanation:

Answer:

$11.90

Step-by-step explanation:

30% of 17 is 5.10 which means you have to subtract 5.10 from 17

Answer:

f'(x)=-(x+42)/5

Step-by-step explanation:

Rewrite f(x) as y:

y=-5x-42

Flip x and y and solve for y:

x=-5y-42

x+42=-5y

(x+42)/-5=y

So the inverse function is f'(x)=-(x+42)/5 (note that f' means inverse)

The given situation would be a best model of cube root.

Solution:

Generally, medicine bottles will be cylindrical in shape. Since the shape of the bottle is not given we can assume that the bottle is in cylindrical shape.

Given information:

Radius of the bottle (r) = one fourth of its height (h)

[tex]\Rightarrow r=\frac{1}{4}\times h[/tex]

Volume of the bottle = V cubic inches

The formula of the volume of a cylinder is as follows,

[tex]\Rightarrow V=\pi r^{2} h[/tex]

This can be re-written as [tex]h=\frac{V}{\pi r^{2}}[/tex] as we do not know the height.

On plugging-in the given values we get,

[tex]\Rightarrow h=\frac{V}{\pi \times(\frac{h}{4})^{2}}\rightarrow \frac{V}{\pi \times\frac{h^2}{16}}\rightarrow \frac{16V}{\pi\times h^2}[/tex]

On solving we get,

[tex]\Rightarrow h\times h^2 = \frac{V}{\pi}[/tex]

[tex]\Rightarrow h^3 = \frac{V}{\pi}[/tex]

On taking the cube root on both sides we get,

[tex]\Rightarrow h=\sqrt[3]{\frac{V}{\pi}}[/tex]

Therefore, cube root would be the best model of the given solution.

Answer:

150 cm²

Step-by-step explanation:

A cube has 6 surfaces.

A cube has equal length for all edges.

Area of 1 surface = 5 x 5 = 25 cm²

Area of 6 surfaces  = 25 x 6 = 150 cm²

Answer:

Step-by-step explanation:

its 600 dont belive those liers.

Answer:

Step-by-step explanation:

Let cost of popcorns be x and pretzels be y.

Then the equations are:

9 bags of popcorn and 2 pretzels, costing a total of $80

7 bags of popcorn and 4 pretzels, costing a total of $72

Answer:9

Step-by-step explanation:

Answer:

0.86liters

Step-by-step explanation:

860cm³=0.86dm³=0.86liters

The capacity of the container is 860 cm³.

To find the capacity of the container, we need to understand that the volume and the capacity are essentially the same thing when referring to containers.

The volume of a container is the amount of space it occupies, and the capacity is the amount of fluid or substance it can hold. Since the volume is already given in cubic centimetres (cm³), which is a unit of volume, it directly translates to the capacity of the container.

Therefore, without the need for any conversion or further calculation, we can state that the capacity of the container is 860 cm³. If one were to express this capacity in litres, knowing that 1 liter is equivalent to 1000 cm³, we could perform a conversion:

[tex]\[ \text{Capacity in liters} = \frac{\text{Capacity in cm}^3}{1000} \][/tex]

[tex]\[ \text{Capacity in liters} = \frac{860}{1000} \][/tex]

[tex]\[ \text{Capacity in liters} = 0.86 \][/tex]

So, the capacity of the container is 0.86 litres, which is equivalent to 860 cm³.

The correct statement about the diagram is,

⇒ Measure of angle JKH + measure of angle JKL = 180 degrees

⇒ Measure of angle JKL + measure of angle JLK + measure of angle KJL = 180 degrees

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

Given that;

The diagram is shown.

Now, By definition of linear pair of angles, we get;

⇒ m ∠JKH + m ∠JKL = 180°

And, The sum of angles in triangle is 180°

Hence, We get;

⇒ m ∠ JKL + m ∠ JLK + m ∠ KJL = 180 degrees

Thus, The correct statement about the diagram is,

⇒ Measure of angle JKH + measure of angle JKL = 180 degrees

⇒ Measure of angle JKL + measure of angle JLK + measure of angle KJL = 180 degrees

Learn more about the angle visit:;

https://brainly.com/question/25716982

#SPJ3

Answer:

x≤4.2

Step-by-step explanation:

12.6 ≤ 3x

1. Divide both sides by 3

2. 12.6÷3= 4.2

x≤4.2

Answer:6 +10b

Step-by-step explanation:

Like terms 9-1-2 =6 and 3b + 7b = 10b

Multipli the numbers

$7.00

21/3=7, and 21 is 3/4 of 7*4

Answer:

80%

Step-by-step explanation:

1280/1600=0.8=80%

Step-by-step explanation:

Based on the given points, we can plot them on a Cartesian plane and determine the resulting shape.The points are:

A: (-5, -6)

B: (0, 0)

C: (-6, -3)

D: (-9, -6)If we connect these points in the order ABCDA, we form a parallelogram.The parallelogram appears in the third quadrant (Quadrant III) of the Cartesian plane, as all the given points have negative x and y coordinates.

Answer:

Red is 19

Blue is 57

Step-by-step explanation:

According to the question,it says Sam has 25% red marble out of the 76.

It means 25/100×76

It gives 19

To get the value for blue

Blue + red=76

Red is 19

Blue + 19=76

Blue=76-19

Blue=57

Therefore,red is 19 and blue is 57

Answer:

x + 4y = -1

4x + 2y = 10

-8x - 4y = -20

x + 4y = -1

-7x = -21

x = 3

3 + 4y = -1

4y = -4

y = -1

Answer:

d=2r

Step-by-step explanation:

The equation of the line in slope intercept form is [tex]y=2x+1[/tex]

Explanation:

The point A is [tex](1,3)[/tex]

The equation of line for B is given by [tex]y=2x-2[/tex]

We need to determine the equation of line in slope intercept form passing through the point A and parallel to line B.

Since, the lines of equation are parallel, their slopes are same.

Thus, the slope is [tex]m=2[/tex]

Now, let us substitute the point [tex]A(1,3)[/tex] and slope [tex]m=2[/tex] in the slope - point formula, we have,

[tex]y-y_{1}=m\left(x-x_{1}\right)[/tex]

 [tex]y-3=2\left(x-1\right)[/tex]

 [tex]y-3=2x-2\right)[/tex]

       [tex]y=2x-2+3\right)[/tex]

       [tex]y=2x+1[/tex]

Thus, the equation of the line in slope - intercept form is [tex]y=2x+1[/tex]

Answer:

441

Step-by-step explanation:

The ratio of sidelengths squares is the ratio of the areas, so the ratio of the area of the smaller triangle's area to the larger triangle's is 25:49.

Using ratios, you figure out that the area of the larger triangle must be 225/25 *49, which is equal to 9*49 = 441

Final answer:

The area of the larger triangle, given a scale factor of 5:7 and the smaller triangle's area of 225cm squared, is 441cm squared. The areas scale as the square of the scale factor, in this case, 25:49.

Explanation:

The question involves working with the scaling of the area of a triangle when given a scale factor between two similar triangles. Since the scale factor of the linear dimensions between the two triangles is 5:7, the ratio of the areas is the square of the scale factor, which is (5:7)2 or 25:49.

If the area of the smaller triangle is 225 cm², to find the area of the larger triangle, we need to use the area ratio. Given that 25 parts correspond to 225 cm²in the smaller triangle, we can calculate the value of 1 part as 225 cm² / 25 = 9 cm2. Hence, the area of the larger triangle corresponds to 49 parts, which gives us 49 * 9 cm² = 441 cm².

Answer:

.50 for one donut

Step-by-step explanation:

do a ratio 6$ for 12 donuts

so for $ for 1 donut

reduce the first equation for a ration of $1 per two donuts

so it be 50 cents

$6. $0.50

____ = ______

12 donuts. 1 donut

Answer:

Option A

Step-by-step explanation:

From the graph, we can see both f(x) and g(x) are parabolas that turns upside down.

The parent function for both f(x) and g(x) is

[tex]y = - {x}^{2} [/tex]

We can see that , f(x) is obtain by shifting the parent function up, by c units.

Therefore

[tex]f(x) = - {x}^{2} + c[/tex]

Also we can see that g(x) is half way between f(x) and the origin.

Therefore

[tex]g(x) = - {x}^{2} + \frac{c}{2} [/tex]

Therefore the correct option is A .

Answer:

Step-by-step explanation:

(x+4)2-3(x+4)-3=0

2x+8-3x-12-3=0

-1x-4-3=0

-1x-7=0

-1x=7

x=7/-1

x=-7

Answer:

u= x + 4

Step-by-step explanation:

I just did the as. and quiz