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Zarrin [17]
3 years ago
13

80 increased by 25%, then decreased by 25% is

Mathematics
2 answers:
Alchen [17]3 years ago
6 0

<u>Answer:</u>

75

<u>Step-by-step explanation:</u>

We are given that 80 is increased by 25% and then decreased by 25% so we are to find the final value.

Increase of 25% in 80 = 25% of 80

= 25/100 × 80

= 20

So our new value after 25% increase = 80 + 20 = 100

Now this new value is decreased by 25% = (100 - 25)% of 100

= 75/100 × 100

= 75

Advocard [28]3 years ago
4 0

Answer:

See below.

Step-by-step explanation:

Increases by 25% :- it is 80 * 1.25 = 100.

100 decreased by 25% = 100 * 0.75

= 75.

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Simplify the expression<br>5-2(9)|+9^2÷3​
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Answer:

14

Step-by-step explanation:

Simplify the following:

5 - 2×9 + 9^2/3

Hint: | Evaluate 9^2.

9^2 = 81:

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Hint: | Reduce 81/3 to lowest terms. Start by finding the GCD of 81 and 3.

The gcd of 81 and 3 is 3, so 81/3 = (3×27)/(3×1) = 3/3×27 = 27:

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Hint: | Multiply -2 and 9 together.

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Hint: | Evaluate 5 + 27 using long addition.

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Hint: | Subtract 18 from 32.

| 2 | 12

| 3 | 2

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Answer: 14

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3 years ago
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2 years ago
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we have a rule in forming triangle.

that sum of any two sides is must be greater than the third side.

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4 0
3 years ago
Read 2 more answers
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