Question

A silk ribbon costs $5.60 for 0.8m. How much does 3.25m of this silk ribbon cost?

Answer 1

$22.75

Explanation:

#1) Find how much 1m of ribbon costs= $5.60 divided by 0.8m= $7

#2) Look at how much does it cost for an amount of ribbon, 3.25m.

#3) Lastly, multiply $7 by 3.25 to equal to $22.75.

Answer 2

We can first find how much the ribbon cost for 1m by setting an equation.

Let $y be the cost for 1m:

0.8y = 5.60
y = 5.60 ÷ 0.8
y = 7

Now that we know 1m of ribbon cost $7, we can proceed to find how much 3.25m ribbon cost by mutiplying the length with the cost:

7 x 3.25
=$22.75

Therefore the answer is $22.75.

Hope it helps!