The function f(x) = 5x converts a nickels to pennies. Find a function that converts pennies to nickels. Then convert 50 pennies to nickels.
f-1 (x) = x/10. 50 pennies is equivalent to 5 nickels.
f-1(x) = 5/x. 50 pennies is equivalent to 5 nickels.
f-1(x) = x/5. 50 pennies is equivalent to 10 nickels.
f-1(x) = 5/x. 50 pennies is equivalent to 10 nickels.

∠cbe and ∠deb are same-side interior angles.

i took the test

thats not a system of equations, that is a solution

i cant answer this, theres no table. sorry man

step-by-step explanation:

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.