4 years ago

A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours?

Mathematics

2 answers:

oksano4ka [1.4K]4 years ago

6 0

38:2=
19:1=
133:7
133 windows.

Blizzard [7]4 years ago

3 0

To solve this problem, we need to find the unit rate (the amount of windows cleaned per hour) and multiply by 7.

To find the unit rate, we need to divide 38 by 2:

38 / 2 = 19

Now, we need to multiply this by 7:

19 * 7 = 133

In 7 hours, the window washer can clean 133 windows.

Hope this helps!

You might be interested in

Which group has the higher mean? By how much? Round to the nearest tenth.

vampirchik [111]

Can I ask how did u make the picture? Plz tell me how

7 0

3 years ago

Determine the period of the function g(x) = (cos ;)

Romashka [77]

Answer:

6 $\pi$

Step-by-step explanation:

The period of a sinusoidal function in the form a * cos (b (x + h)) + m is $\frac{2\pi }{|b|}$ . Therefore, we can see that "b" in g(x) is 1/3 and 1/3 substituted into $\frac{2\pi }{|b|}$ is 2 $\pi$ /1/3 which is 6 $\pi$ .