15/3 = x/7.

Use cross products and multiply 15*7= 105/3= 35.
He can wash 35 cars in 7 hours..
Hope this helps!
Can u plz mark me as brainliest? I really need it!

5 0

3 years ago

A cone with volume 5000 m³ is dilated by a scale factor of 15. What is the volume of the resulting cone? Enter your answer in th

Rasek [7]

Answer:

$40\ m^{3}$

Step-by-step explanation:

we know that

If two figures are similar then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-----> scale factor

x-----> the volume of the dilated cone

y-----> the volume of the original cone

$z^{3}=\frac{x}{y}$

In this problem we have

$z=1/5$

$y=5,000\ m^{3}$

substitute and solve for x

$(1/5)^{3}=\frac{x}{5,000}$

$(1/125)=\frac{x}{5,000}$

$x=5,000/125=40\ m^{3}$

5 0

3 years ago

Read 2 more answers

Tristan walked for 13 1/4 hours in May and June altogether. In May, he walked 6 4/6 hours. How many hours did he walk in June?

Triss [41]

The equation that you should use to solve this is (13 + 1/4) - (6 + 2/3) = 6 and 7/12

5 0

3 years ago

8,392,003,830 in expanded form

zvonat [6]

8,000,000,000+300,000,000+90,000,000+
2,000,000+3,000+800+30

8 0

4 years ago