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Allisa [31]
3 years ago
11

Explain how to find the constant of proportionality for the ratio of robins to cardinals.

Mathematics
1 answer:
mash [69]3 years ago
4 0

Answer:

Divide the number of robins by the number of cardinals for each pair of values. The ratios are the same and are a constant of proportionality of 3.

Step-by-step explanation: I took the test on Edgenuity.

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Sasha has 3.20 in U.S. coins. She has the same number of quarters and nickels. What is the greatest number of quarters she could
RSB [31]

Answer:

10 quarters = $2.50

10 nickels = $0.50

that leaves $0.20 for other coins (dimes / pennies)

Step-by-step explanation:

First, suppose she has only quarters and nickels and no other coins.  Then if C is the identical number of coins of each type, then 5C + 25C = 320, so 30C = 320 and 3C = 32, but there is no integer solution to this.  So she must have at least one other type of coin.

Assume she has only quarters, nickels, and dimes.  Then if D is the number of dimes, 5C +  25C + 10D = 320, which means 30C + 10D = 320, or 3C + D = 32.  The smallest D can be is 2, leaving 3C = 30 and thus C = 10.  So in this scenario she would have 10 quarters, 10 nickels, and two dimes to make $2.50 + $0.50 + $0.20 = $3.20.

This has to be the highest number, because if she had 11 quarters and 11 nickels, that alone would add up to 11(0.25) + 11(0.05) = $3.30, which would already be too much.

8 0
3 years ago
Read 2 more answers
List all the composit numbers between 1-10
torisob [31]
The answer is 4, 6, 8, 9, and 10. The following numbers (1, 2, 3, 5, and 7) are prime numbers.
6 0
3 years ago
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Anni [7]

i think the question is not correct write it again or attach the pic ic

6 0
3 years ago
Please help thanks
qwelly [4]

Answer:

x = 7 is your answer.

Step-by-step explanation:

Here is what you do:

<em>x + 16 = 4x - 5</em>

<em>-3x + 16 = -5</em>

<em>-3x = -21</em>

x = 7 is your answer.

4 0
3 years ago
Say whether each of these numbers is a fraction, a decimal, or a whole number: ⅗, 18.2, 47!
denpristay [2]

Answer:

Fraction, decimal, whole number

Step-by-step explanation:

if it has a line, it's a fraction. If it has a dot, it's a decimal. If it has none of the above, it's a whole number

6 0
2 years ago
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