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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1) The scale factor for the dilation is 2/3.
2) The polygon became smaller after the dilation because you are multiplying by a scale factor less than 1.
3) The ratio of the areas is 2/5.
Answer:
the answer is 4
Step-by-step explanation:
81 minus 28 minus 2 minus 11 equal 40 28 divide 7 is 4
Well, both AMC are on the line I don’t exactly understand what the question is
Answer:
Assuming there are 3 possibilities for the spinner, the answer is 
Step-by-step explanation: