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yaroslaw [1]
3 years ago
15

if a person's total comes to $32.45 and they give you $45.50 but you accidentally type in $40.32 what change would you get them

back
Mathematics
1 answer:
cupoosta [38]3 years ago
4 0

Answer:

you would give back $7.87. But if you add the $40.50 instead you would give them $8.05

Step-by-step explanation:


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  20 green pencils

Step-by-step explanation:

The difference between black and green "ratio units" is 7 -5 = 2. The difference between red and blue ratio units is 3 -2 = 1. The sum of those differences is 2 +1 = 3 ratio units, which represent 12 pencils. Then each ratio unit represents 12/3 = 4 pencils.

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_____

If you need an equation, you can use k as the constant of proportionality. Then the sum of differences described is ...

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  3k = 12 . . . . simplify

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