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Lorico [155]
3 years ago
7

A grocery delivery service has 22 members. Each member pays monthly dues of $12.80

Mathematics
2 answers:
Semmy [17]3 years ago
7 0
The answer is C. 166.40

22 - 9 = 13 ( members who paid on the third)
13 x $12.80 = $166.40
slava [35]3 years ago
3 0

Answer:

C

Step-by-step explanation:

If 9 members paid on the first day, this means they did not pay on the third day

The remaining people (everyone but the 9) paid on the third day

Therefore we must subtract to find out how many members paid on the third day

22 - 9 = 13

Each of the 13 members paid $12.80 which means we must multiply

13 × 12.80 = 166.40

In total, the grocery store collected $166.40 on the third day of the month

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marta [7]

\frac{3}{4} = \frac{x}{12}

To solve for x you have to bring the 12 to the other side

How  do we do this?

Well if you think about it this is technically what the equation shows

\frac{3}{4} = x * \frac{1}{12}

This means to isolate x you can multiply both sides by 12 and that will cancel \frac{1}{12} from the right side

\frac{3}{4} * 12 = x * \frac{1}{12} * 12

\frac{36}{4} = x * 1\\\frac{36}{4}  = x

\frac{36}{4} can be further simplified to...

9

^^^This is the answer

Check:

3/4 = 9/12

3/4 = 3/4

Hope this helped!

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3 years ago
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Ilia_Sergeevich [38]

Answer: x= 2 , y= 5 (5+2=7)

Step-by-step explanation:

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Is this right, can someone please explain so?
Orlov [11]
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The value of w varies directly with z. If z = 4, then w = 12. What is the value
IrinaVladis [17]

Answer:

18

Step-by-step explanation:

w varies directly with z, let k be the constant of proportionality, hence this can be represented by the equation:

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