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katen-ka-za [31]
3 years ago
11

A survey in one middle school showed that 3 out of 5 students

Mathematics
1 answer:
Anestetic [448]3 years ago
6 0
Take 3/5 of 485 you got it
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Which expression is equivalent to 3(5+4)
guajiro [1.7K]

Answer:

3(15+12)

Step-by-step explanation:

3(5+4)

3( 5 x 3 =15 and 4 x 3= 12)

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2 years ago
Quick, anyone know this geometry question?
scoray [572]
RS is 68 and T is 92 if you want an explanation then i gotten but u said quick so maybe it is timed idk
4 0
3 years ago
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Yo im not good at this stuff, can someone help me?​
Kazeer [188]

Answer:

  21 kWh

Step-by-step explanation:

1. Subtract 25% from the original amount.

  25% of 28 kWh is ...

  0.25 × 28 kWh = 7.00 kWh

Subtracting this from 28 kWh, we find the usage after reduction to be ...

  28 kWh - 7 kWh = 21 kWh

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2. We know that if we reduce 100% of a quantity by 25%, then the resulting amount is (100 -25)% = 75% of the original. As a fraction, this is 75/100 = 3/4 of the original amount. Then the reduced usage is ...

  (3/4) × (28 kWh) = 3·(7·4)/4 kWh = 3·7 kWh = 21 kWh

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Mario must reduce his usage to 21 kWh or less.

7 0
2 years ago
Simplify 2x+3y^2 -2(x-y2)
poizon [28]

Multiply the bracket by -2

2x+3y^2 -2(x-y2)

2x+3y^2-2x+2y^2

2x-2x+3y^2+2y^2- rearranging

3y^2+2y^2

5y^2

Answer: 5y^2

6 0
3 years ago
What are all of the factors for 12 and 30? If you answer thank you for helping, I really appreciate it.
svet-max [94.6K]

Answer:

12

2,3,4,6

30

12,3,5,6,10,15

4 0
3 years ago
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