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agasfer [191]
3 years ago
6

Which equation shows how to use equivalent fractions to evaluate 2 5 + 3 4 5 2 ​ + 4 3 ​ start fraction, 2, divided by, 5, end f

raction, plus, start fraction, 3, divided by, 4, end fraction?
Mathematics
1 answer:
damaskus [11]3 years ago
8 0

Answer:

2/5 + 3/4 = 23/20

Step-by-step explanation:

Given

2/5 + 3/4

To evaluate this using equivalent fractions, we have to make the fractions have the same denominators, in such a way that the value of each fraction is unchanged.

First consider the denominators of each fractions: 5 and 4. Their lowest common multiple is 5×4 = 20.

20/4 = 5, and 20/5 = 4

Now, 2/5 = (2×4)/(5×4) = 8/20

and 3/4 = (3×5)/(4×5) = 15/20

So

2/5 + 3/4 = 8/20 + 15/20

= (8+15)/20 = 23/20

Therefore,

2/5 + 3/4 = 23/20

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3 years ago
Conner works 8 1/2 hours and earns $80.75. If Zoey makes an hourly rate that is proportional and earns $118.75, how many hours d
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Answer:

Step-by-step explanation:

In 8 hours 30m Corner earns $80.75

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Hours Zoey works= 510*118.75/80.75(converted 8hours into minutes by multiplying with 60)

Solving we get 12 hours 30m.

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3 years ago
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zhannawk [14.2K]

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Step-by-step explanation:

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3 0
3 years ago
Which is the value of this expression when a=-2and b=-3
monitta

Let's solve your system by substitution.

a=−2;b=−3

Step: Solve a=−2for a:

a=−2

Step: Substitute−2for a in b=−3:

b=−3

b=−3

Answer:

a=−2 and b=−3

6 0
3 years ago
There are 312 cards in 6 decks of playing cards . IF YOU HAVE TIME PLEASE HELP ON THE OTHERS QUESTIONS BELOW IN THE PICTURES ! (
shepuryov [24]
To figure out how many cards are in each deck, divide 312 by 6. That comes out to a quotient of 52. That means there are 52 cards in each deck.

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$11.98 * 5 = $59.9

Do the same with the 5 package, except multiply it by 2.

$24.95 * 2 = $49.9

Now, with these 2 answers you can tell that the 5 game package is $10 cheaper than the 2 game package, even though you are getting the same amount of games.

Hope this helps a little!
4 0
3 years ago
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