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kolbaska11 [484]
3 years ago
12

And buys a pencil for $0.45 draw and label coins. Ann could use to make $0.45

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
8 0

Answer:

You could use 9 nickels

You could use 45 pennies

You could use 1 quarter and 2 dimes

You could use 4 dimes and 1 nickel

You could use 2 dimes and 5 nickels

You could use a lot more combination that equal 45...

jekas [21]3 years ago
4 0

Answer:

You could use one quarter and two dimes... that will equal $0.45

(I'm not sure what you are asking for)

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The sum of two numbers is 24. The difference is 15. What are the two numbers?
tatiyna
The numbers are "x" and "y",
we suggest this system of equations.
x+y=24
x-y=15
solve by reduction method.
x+y=24
x-y=15
-----------------
2x=39      ⇒x=39/2=19.5

  x+y=24
-(x-y=15)
-------------------
   2y=9    ⇒y=9/2=4.5

The numbers are 19.5 and 4.5

To check
19.5+4.5=24
19.5-4.5=15
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