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KIM [24]
3 years ago
10

Now, it’s time to take a break! Let’s have a class picnic! Our school cafeteria sent a big cooler

Mathematics
1 answer:
larisa [96]3 years ago
5 0

Answer:

Each person gets

.5 kilograms of mini sub sandwich

50 grams of baked potato chips

100 grams of apple

20 grams of trail mix

.5 liters of picnic punch

Step-by-step explanation:

Divide everything by 20

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Let:
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y= dimes


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and
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x=67-y

.25(67-y)+.10y=12.40
16.75-.25y+10y=12.40
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Lets rearrange this:
-.15y+16.75=12.40
        -16.75    -16.75
-.15y=-4.35
the negatives cancel out
.<u>15y</u>=<u>4.35
</u>.15<em /><em>     <u /></em>.15
y=29

Back to the original x=67-y
x=67-29
x=38

So,
x=38
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