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irina [24]
1 year ago
9

To collect data about the amont of time spent​

Mathematics
2 answers:
Sloan [31]1 year ago
8 0
A or survey 20 randomly selected students from each grade.
solniwko [45]1 year ago
5 0

Answer:

Probably the first one because the other two questions would be un-reliable

Step-by-step explanation:

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Bella has a stack of 41 bills (ones, fives, and tens) in an envelope. She has 3 less tens than fives and the quantity of ones do
AleksandrR [38]

Answer:

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Step-by-step explanation:

We know that the other two bills are based of of a constant value for fives. Therefore, the fives can be x. There are 3 less tens than fives, so the number of tens equals x-3. We double the number of fives to get the number of ones, so the number of ones equals 2 times x. When we add all 3 of those together, we get our total number of 41. If you want to solve, you have to solve for x, then you can plug it back into the formula. I hope this helps!

3 0
2 years ago
Solve for y A=9y=3yx
melamori03 [73]
I think it is:

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3 0
3 years ago
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