All categories

3 years ago

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

Mathematics

2 answers:

Alchen [17]3 years ago

6 0

Answer:

Step-by-step explanation:

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.

You might be interested in

4 4/5 divided by 1 1/2

vesna_86 [32]

Answer:

1⅗

Step-by-step explanation:

=44/5÷11/2

when two fractions are dividing,turn the division sign into multiplication sign and take the reciprocal of one fraction.That is,in one fraction let the numerator become the denominator and the denominator become the numerator

=44/5×2/11

then 11 goes into forty-four. 4

therefore

=4/5×2/1

=8/5

=1⅗

5 0

2 years ago

Read 2 more answers

KNOWLEDGE CHECK!!!ALEKKSSSS

Morgarella [4.7K]

Answer:

2,5

Step-by-step explanation:

Add three

4 0

3 years ago

Find the volume of the cylinder. 13 radius 16 height

Neko [114]

B
Assuming your multiplying by 3.14, you would get 8,490.56 and if you round you get 8,491

4 0

2 years ago

A water storage tank has the shape of a cylinder with diameter 14 ft. It is mounted so that the circular cross-sections are vert

4vir4ik [10]

Check the picture below.

neverminding for a few seconds the volume of the cylinder, the percentage in the height used by the water will be the same as the percentage of its volume. We know the total amount or 100% of the height is 14, so what is 11 in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 14&100\\ 11&x \end{array}\implies \cfrac{14}{11}=\cfrac{100}{x}\implies 14x=1100 \\\\\\ x = \cfrac{1100}{14}\implies x = \cfrac{550}{7}\implies \boxed{x \approx 78.6}$

7 0

2 years ago

Can some one help me with this

Studentka2010 [4]

The answer is 2 i hope this helps

7 0

3 years ago