Xavier is x years old and yvonne is y years old. yvonne is 7 years older than xavier. four times yvonne’s age is equal to 200.

(a) write an equation that could be used to solve for yvonne’s age, y.

(b) how old is yvonne? show your work!

(c) how old is xavier? show your work!

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9