Gabrielle is 5 years younger than Mikhail. The sum of their ages is 81. What is Mikhail's age?

Step-by-step explanation

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

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.