6 — Rectangle and Square Areas

Rectangle and Square Areas

Solution & Explanation · ID: B2B5A11C

Question

Jake's rectangular backyard is 25 feet long and 15 feet wide. He wants to plant grass that costs $3 per square foot. How much will it cost to cover the entire backyard?

Hint

First find the area (25 × 15 = 375 sq ft), then multiply by the cost per square foot (375 × $3).

Concept

To find the total cost, first calculate the area of the rectangle, then multiply by the cost per square foot.

Show Answer

$1,125

Show Solution
1

Find the area: A = length × width = 25 feet × 15 feet = 375 square feet

2

Identify the cost per square foot: $3 per square foot

3

Calculate total cost: 375 square feet × $3 per square foot

4

Total cost = $1,125

A rectangle representing the backyard with top edge labeled '25 ft' and left edge labeled '15 ft'. Inside shows 'Area = 375 sq ft' and below the rectangle shows the calculation '375 × $3 = $1,125'. The rectangle is outlined in green to represent grass.