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Mila [183]
3 years ago
7

30=7r+5 what’s does r stand for

Mathematics
2 answers:
harkovskaia [24]3 years ago
7 0

Answer:

An unknown variable

Step-by-step explanation:

r is an unknown variable -> the equation is used to solve for it.

kodGreya [7K]3 years ago
3 0

Answer:

In math, r usually stands for radius.

Step-by-step explanation:

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Well, there is actually a formula for this kind of exercises:

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m is the price the land had in the second year

6250=m-mx0.6

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p=6250:0.4

p=15625

p is the price the land had in the first year

15625=p-px0.6

15625=p(1-0.6)

15625=px0.4

p=15625:0.4

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The value of the 3 in 657.23 is ... the value of 3 in 24.378
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