78.5 cm² of plastic is needed to make a similar shaped 2.5 ounce bottle.
Step-by-step explanation:
It is given that,
It takes 471 cm² of plastic to make a 15 ounce bottle.
Let us assume,
The plastic required to make 2.5 ounce bottle = x cm²
To find the x value :
Comparing the given data,
471 plastic / 15 ounce bottle = x plastic / 2.5 ounce bottle
Keeping x alone on one side and cross multiplying the denominator,
(471 / 15) × 2.5 = x
31.4 × 2.5 = x
78.5 = x
Therefore, the value of x= 78.5 cm²
The plastic required to make 2.5 ounce bottle is 78.5 cm²
