Let the number of hour it took them to have completed the same number of problems be x, then
15 + 10x = 9 + 12x
12x - 10x = 15 - 9
2x = 6
x = 6/2 = 3

After 3 hours, they must have completed the same number of homeworks.

7 0

3 years ago

If a point is equidistant from the endpoint of segment, then it is

Mashutka [201]

.... then it is located on the perpendicular bisector.

7 0

3 years ago

You want to be able to withdraw $30,000 from your account each year for 15 years after you retire. If you expect to retire in 25

crimeas [40]

Answer:

use calculator

Step-by-step explanation:

8 0

2 years ago

The price of a video game was reduced from $60 to ​​​​​​​$45. By what percentage was the price of the video game reduced?

The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?