Question

Consider the following formula used to estimate the height, h, of a seeding after w weeks since planting h=(1/5)w + (8/5)which of the following represents the formula that could be used to find the number of weeks since planting using the height, h, of the seeding? Select one answer. (a) w = 5h - (8/5) (b) w = 5h - 8 (c) w = (h/5) - 8 (d) w = h/5 - 8/5

Answer 1

w=5h-8

Explanation:

Take the original formula h=(1/5)w+(8/5)

Subtract -8/5 on both sides to isolate the w, so h-8/5=(1/5)w

Now you have to get rid of the 1/5, so multiply 5(h-8/5), the 5 in the 8/5 cross each other out. You are left with 5h-8