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Slav-nsk [51]
3 years ago
12

Joann has a certain number of dimes and quarters in her purse, with a total value of $3.75. The

Mathematics
1 answer:
NISA [10]3 years ago
6 0

Answer:

The system of equations 10d+25q=375 and q = 3d-2 can be used to find the numbers of dimes and quarters that Joann has.

Step-by-step explanation:

Given that:

Total value of dimes and quarters = $3.75 = 3.75*100 = 375 cents

One quarter = 25 cents

One dime = 10 cents

Let,

d be the number of dimes

q be the number of quarters

According to given statement,

10d+25q=375

q = 3d-2

Hence,

The system of equations 10d+25q=375 and q = 3d-2 can be used to find the numbers of dimes and quarters that Joann has.

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luda_lava [24]

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3 years ago
If x=7cm what is the surface area of the geometric shape formed by this net
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Let’s start with the four rectangles.
4 [ 2x(x)]
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** I need to be clear that both the 2 and the x in the parentheses are squared because the square, of course, is a “perfect square”. This was probably obvious and needless to say, haha oh well.
Next step: plug in values
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Good luck to you!
If you have any other math questions, I can try my best to answer them. Just send me a comment or whatever works.
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