A pound of apples cost$1.35. A pound of cherries cost $3.62. How much will it cost to buy 1.6 pounds of apples and 2.5 pounds of cherries?

Answer 1

1lb of Apples = 1.35

1lb of Cherries = 3.62

To figure out how much 1.6 pounds of apples will cost, we must use the pre-existing information to help us solve for this unknown "x".

Since 1lb of apples = 1.35; divide both sides by 1.35 to get this -> {(1lb of apples / 1.35) = 1}

Also the cost of 1.6lb of apples = x; {(1.6lb of apples / x) = 1}

Therefore:

(1/1.35) = (1.6/x)

First multiply both sides by x, giving us:

(x/1.35) = 1.6

Then multiply each side by 1.35, giving you the answer:

x = 2.16

Performing the same computation with the cherries. Let y = cost of 2.5lb of cherries.

(1/3.62) = (2.5/y)

Then:

(y/3.62) = 2.5

Finally:

y = (3.62) * 2.5 = 9.05

How much will it cost to buy 1.6lb of apples ($2.16) and 2.5lb of cherries ($9.05)?

$2.16 + $9.05 = $11.21