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rewona [7]
3 years ago
15

Why multiplying the numerator and denominator of a fraction by the same number results in an equivalent fraction?

Mathematics
1 answer:
kotykmax [81]3 years ago
8 0
Im Not That sure But I Belive That If Denominators Are The Same Keep It And Just Do The Math In The Numerator's . ( For Adding ) But Multiplying You Do Both and If The Numerator Is The Bigger Than The Denominator Your Going To Have To Do Extra Math Like A Common Denominator ( I Belive ) . 
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A party rental company has chairs and tables for rent. The total cost to rent 4 chairs and 8 tables is $89 . The total cost to r
puteri [66]
Let C = cost to rent each chairLet T = cost to rent each table

 4C + 8T = 73
2C + 3T = 28 
Multiply the 2nd equation by (-2) and then add the equations together 

  4C + 8T = 73
-4C - 6T = -56
 2T = 17T = 17/2 = 8.5

 Plug this in to the 1st equation to solve for C
 4C + 8(17/2) = 73
4C + 68 = 73
4C = 5C = 5/4 = 1.25
 So the cost to rent each chair is $1.25 and the cost to rent each table is $8.50 
7 0
3 years ago
Read 2 more answers
Standard form (1.5*10^-3) * (2*10^4)
Semenov [28]
(1.5)*(2)*(10^(-3)*(10^4) = 3*10^(-3+4) = 3*10^1 = 3*10 = 30 (answer)
6 0
3 years ago
Need help please don't know this
4vir4ik [10]

Answer:

  x = -3

Step-by-step explanation:

The graph is symmetrical about the vertical line through its vertex:

  x = -3

8 0
2 years ago
In the definition of fractional numbers, b ≠ 0. Why?
Nataliya [291]
I have no idea. Just commenting to get the answer when someone else knows it
6 0
2 years ago
How to rewrite the sum of 96 80 using distributive property?
elena-14-01-66 [18.8K]
96+80= (100-4)+(100-20)
= 200-24
=174
4 0
2 years ago
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