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otez555 [7]
3 years ago
15

Help me please Its math

Mathematics
2 answers:
Wittaler [7]3 years ago
6 0
The equation is n=7m.
So if you plug in or substitute substitute the m values into the variable they will equal the n values
solong [7]3 years ago
5 0
7m=n is the equation
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Bethany has 3.10$ in nickels and dimes. She has a total of 44 coins . What is the value of the nickels Bethany has
vlada-n [284]
Represent the unknows with n and d.

Then n+d = 44 (# of coins)

and 

$0.05n + $0.10d = $3.10   (value of coins)

Solving the first equation for n, we get n = 44-d.  Subst.  44-d for n in the 2nd equation:

0.05(44-d) + 0.10d = 3.10
Then 2.20 - 0.05d + 0.10d = 3.10, or
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d = -------- = 18
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3 years ago
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URGENT!! WILL MARK BRAINLIEST IF CORRECT!!!
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Answer:

Story 2 because it is talking about how much they spend. ANOTHER HINT: That equation has all the numbers in story 2. They key is to look at how the problem is set up.

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Step-by-step explanation:

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The value of 4530 divided by 10^3 is B
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Step-by-step explanation:

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