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leannamat2106
16.10.2019 •
Mathematics
Caleb is making a soil mix that is 8 parts dirt to 3 parts peat moss. which of the following best describes the amount of dirt he could use for every 1 cup of peat moss?
a. he should add between 1/4 cup and 1/2 of dirt.
b. he should add between 1/2 cup and 1 cup of dirt.
c. he should add between 1 cup and 2 cups of dirt.
d. he should add between 2 cups and 3 cups of dirt.
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Ответ:
D. He should add between 2 cups and 3 cups of dirt.
Step-by-step explanation:
First we need to take the ratio of dirt to peat moss.
8 parts dirt : 3 parts peat moss.
Now we take the ratio and find the value of dirt.
8 : 3 =![\dfrac{8}{3}](/tpl/images/0325/9835/a440f.png)
x : 1 =![\dfrac{x}{1}](/tpl/images/0325/9835/ca5be.png)
We now multiply both sides by 1.
So now we substitute x.
2.67 Cups Dirt : 1 Cup Peat Moss
Ответ:
x + x + 1 = 3x - 1
2x + 1 = 3x - 1
1 + 1 = 3x - 2x
2 = x
x + 1 = 3
ur integers are 2 and 3