Let x be the amount of cement and y be the amount of sand. If <span>the ratio of cement to sand for mortar is 1:3, then

and y=3x.
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So, if <span>Sandy puts in x=7 shovels of cement, then she puts

shovels of sand.
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Answer: 21 shovels of sand.
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Answer:
Step-by-step explanation:
let the number be x
(x+6)/3 =21
x+6=21*3
x+6=63
x=57
Formula : 2 x pie x radius
1. 2x3.14x3=18.84in
2.2x3.14x6=36.48yd
3.2x3.14x4=25.12ft
4.2x3.14x12=75.36yd
Answer:
D. All real numbers.
Step-by-step explanation:
This expression can have any real number assigned to x.
Answer:
1 quart gives 32 ounces. And you already know how many ounce are needed to erupt. So the last step you can figure out easily.
Give brainiest.