Answers:
- Area = 120 square feet
- Area = 60 square inches
- He needs 10 bags
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Step-by-step explanation:
For problems 1 and 2, we just multiply the base and height. This is the same as multiplying the length and width.
So in problem 1 we have 10*12 = 120 square feet. In problem 2 we have 6*10 = 60 square inches.
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Problem 3 follows the same idea, but we do a bit more work. The area of the garden is 5*12 = 60 square feet.
Let's say x is the number of bags needed.
1 bag covers 6 square feet
2 bags cover 12 square feet
and so on
x of those bags cover 6x square feet. The x is just a placeholder for a number. Specifically, a positive whole number.
The expression 6x represents how much area that can be covered by x bags. We want to cover 60 square feet.
The equation we need to solve is 6x = 60. Doing so leads to x = 10 after dividing both sides by 6.
So this means Travis needs 10 bags.