3 years ago

FIND THE PERCENT ERROR.

Mathematics

1 answer:

mariarad [96]3 years ago

3 0

He was 26 percent off

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In March, a family starts saving for a vacation they are planning for the end of August. The family expects the vacation to cos

Makovka662 [10]

Deposited money:

March: 120
April: 120+(120×20)/100=120+24=144
May: 144+(144×20)/100=144+18,8=162,8
June: 162,8+(162.8×20)/100=162,8+32.56=195.36
July: 195.36+(195.36×20)/100=195.36+23.87=219.23
August: 219.23+(219.23×20)/100=219.23+43.85=263.08

120+144+162.8+195.36+219.23+263.08=1105.19
So the answer is no.

7 0

3 years ago

The width of the ochoa community pool is 20 feet. The length is twice as long as it's width . what is the perimeter of the pool?

guapka [62]

Width = 20 feet
length = 2(20) = 40 feet
then the perimeter equals 2width+ 2length = 2(20)+ 2(40) = 40+80 = 120 feet

8 0

4 years ago

What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?

kifflom [539]

Good night,

<span>Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: </span> $\frac{1289}{100}$

$\frac{12}{144}= \frac{1}{12}$

<span>The above numbers can be expressed as a fraction, then the logical answer is: </span> $\sqrt{12}$

But we will check the answer:

$\sqrt{12}= \sqrt{2^{2}*3 } =2* \sqrt{3} =3.4641016...$

As you can see we can't express that number as a fraction, so that is te correct answer.

6 0

4 years ago

Please help with this problem!

Dovator [93]

Answer:

x+14

Step-by-step explanation:

(12+x)+2

12+x+2

x+(12+2)

x+14

4 0