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____ [38]
3 years ago
13

A store is having a sale on chocolate chips and walnuts. For

Mathematics
1 answer:
Airida [17]3 years ago
3 0
$1 chocolate and $2.5 walnuts
5c+2w=10
3c+8w=23

elimination 

-4(5c+2w=10) =-20c-8w=-40  + 3c+8w=23

=-17c=-17
c=1

5(1)+2w=10
2w=5
w=2.5

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Answer:

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Step-by-step explanation:

Comment

Let the two numbers be x and y

Equations

x + y = 63

x - y =  12

Solution

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2x = 75               Divide by 2

2x/2 = 75/3         Do the division

x = 37.5

Now use one of the given equations to solve for y

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37.5-37.5+y= 63 - 37.5     Collect the like terms on both sides

y = 25.5

Check

x - y =? 12

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Answer:

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Step-by-step explanation:

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