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SpyIntel [72]
3 years ago
8

Yo im not good at this stuff, can someone help me?​

Mathematics
1 answer:
Kazeer [188]3 years ago
7 0

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

__

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

__

Mario must reduce his usage to 21 kWh or less.

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Well the square root of a number is a number times its self equaling the number you're getting the square root of. For example:

<span>√ 25
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To get sqrt of 25 we need to find a number times its self that equals 25. Lets try 8.

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Well thats much too high, We'll try a lower number.

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3 years ago
1/3 of the fish in the tank are snappers. 2/9 of the fish are catfish and the rest are goldfish. There are 40 goldfish in the ta
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Answer:

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