Mandy's brother zach is 15 years younger than her. the sum of their ages is 49. find both ages

Mandy is 34 and Zach is 15

How I got the answer...

You subtract 49-15=34. So Mandy is 34 years old and it already told us Zach's age

Have a good day :)

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.