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Artemon [7]
3 years ago
12

Sara completes 2/5 of her math homewIrk in class. What percentage is left for Sara to finish

Mathematics
1 answer:
Bad White [126]3 years ago
3 0

Step-by-step explanation:

Well 3/5 is left.

20 × 5 = 100

She did 40% because 2/5 = 4/10

So if 20 × 3 = 60 the there is 60% left

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Please help and also explain how you got the answer if you can
lukranit [14]
The answer is A and D

In answer choice A the fractions are 3/6 and 4/6. In the original equation in fractions are 1/2 and 2/3. The equivalent fraction to 1/2 is 3/6 because 1x3=3 and 2x3=6, therefore 3/6 is equivalent. The equivalent fraction to 2/3 is 4/6 because 2x2=4 and 3x3=6, therefore 4/6 is equivalent.


In answer choice D the fractions are 9/18 and 12/18. In the original equation in fractions are 1/2 and 2/3. The equivalent fraction to 1/2 is 9/18 because 1x9=9 and 2x9=18, therefore 9/18 is equivalent. The equivalent fraction to 2/3 is 12/18 because 2x6=12 and 3x6=18, therefore 12/18 is equivalent.

Hope this helps :D
8 0
3 years ago
Jacob and Zachary go to the movie theater and purchase refreshments for their friends. Jacob
son4ous [18]
Ok lets say
popcorn = x and
drinks = y

Jacob:      2x + 3y = 18.25
Zachary:   4x + 2y = 27.50

ok now you have to use these 2 equations to get the answer

4x + 2y = 27.50  --->   2y = 27.50 - 4x   --->  y = 13.75 - 2x

2x + 3y = 18.25
2x + 3(13.75-2x) = 18.25
2x + 41.25 - 6x = 18.25
-4x + 41.25 = 18.25
-4x = -23
x = 5.75             <u><em>One bag of popcorn is $5.75</em></u><em />


4x + 2y = 27.50
4(5.75) + 2y = 27.50
23 + 2y = 27.50
2y = 4.50
y = 2.25             <u><em>One drink is $2.25</em></u><em />

4 0
3 years ago
Read 2 more answers
Laura makes 10.5% commission on each of her sales. How much does she make when she sells a house for 85,000
kykrilka [37]

Answer:

85000/100*10.5 = $8925

Step-by-step explanation:

N/A

5 0
3 years ago
#2) Jane wants to have a test average of at least 78.
Vlad [161]
She would have to score atleast a 74 on the test for her average to be 78
5 0
3 years ago
HELP ME PLEASE! tell me if 11,12 are right and help w/ 13
Marysya12 [62]

Answer: I know 12 is right

Step-by-step explanation:

7 0
3 years ago
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