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amm1812
3 years ago
14

Another parking lot with three sections has 80 cars in it. Is it possible for ratio of the number of cars in the first section t

o the number of cars in the second section to the number of cars in the third section to be 1:2 :3? Explain why or why not.
Mathematics
1 answer:
shusha [124]3 years ago
4 0
Yes. 80:160:240 will equal to 1:2:3
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50 points decreased by 26% is points.
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50 points decreased by 26% is 37 points.

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I have seen this question before and I think you meant 10 more dimes than nickels.

We can use substitution to answer this question. The value of a nickel is 5 cents, and we can use the variable n to represent the number of nickels. The value of a dime is 10 cents, and we can use the variable d to represent the number of dimes.

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Now lets isolate a variable in one of the equations, preferably the second one because it doesn't have any visible coefficients,

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Now that we have the value of n, we can plug it into the other equation.

.10d+.05n=2.80
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Now that we know that there are 22 dimes and we also know that there are 10 less nickels than dimes, so we can subtract 10 from 22 to get the number of nickels. 22-10=12

d=22
n=12


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