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pishuonlain [190]
3 years ago
8

−7y−4x=1 ​7y−2x=53 Solve the system of equations​​

Mathematics
1 answer:
Reptile [31]3 years ago
3 0
-7y-4x=17y-2x=53
-4x=24y-2x=53
-2x=24y=53
24y+2x=53

You would have to solve one at a time.
y=53/24 
y=2.21
x=53/2
x=26.5
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find the area of a circle with a diameter of four. Either enter an exact answer in terms of Pi or use 3.14 for pi as a decimal ​
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Answer:

4 pi

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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Donald has a bunch of nickels and dimes in his piggy bank. There are 100 coins in the bank that make a total of $6.60 in change.
brilliants [131]

Answer:

78 nickels and 22 dimes

Step-by-step explanation:

Nickels = n, Dimes = d

<u>Number of coins = 100</u>

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Step-by-step explanation:

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3 years ago
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