A small bag of chips weighs 48 grams. A large bag of chips weighs three times as much as the small bag. How much will 7 large bags of chips weigh?
2 Answers
Seven large bags of chips will weigh 1,008 grams.
Explanation:
Let's let "a" equal the weight of a small bag of chips, so:
a = 48
Next, let's let "b" equal the weight of a large bag of chips, and since it is three times the weight of the small bag of chips, we would write an equation that would be:
b = 3a
Let "c" be equal to the total weight of seven bags of chips, so it would be the product of 7 and "b". Therefore, we would write another equation:
c = 7b
Since "b" is equal to 3a, we can replace it with 3a in the equation, so:
c = 7(3a)
Since "a" is 48, we can plug in 48 for "a" in that equation, so:
c = 7(3(48))
Multiply and:
c = 1008
So the weight of seven large bags of chips is 1,008 grams.
Explanation:
The small bag
The large bag
To solve for
But now they have
That is: