Question

Find the missing values in the ratio table: 4.5 lbs is $10, 9 lbs is ___, 13.7 lbs is $50.

a) $20
b) $22.50
c) $25
d) $27.50

Answer 1

By establishing the unit rate from the given ratio of 4.5 lbs to $10 and multiplying by 9 lbs, the missing value in the ratio table for 9 lbs is approximately $20.

Step-by-step explanation:

The question asks us to find the missing value in a ratio table where 4.5 lbs is $10. To find the cost for 9 lbs, we first establish the unit rate or cost per pound by dividing $10 by 4.5 lbs, which gives us approximately $2.22 per lb. We then multiply this unit rate by 9 to find the cost for 9 lbs:

$2.22 per lb × 9 lbs = $19.98

Rounding this to the nearest half-dollar, which is a common practice in pricing, gives us $20. Therefore, the cost for 9 lbs is approximately $20 (option a).