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AlladinOne [14]
3 years ago
14

A family spends $540 every month on food. If the family's income each month is $1800, what percent of the family's income is spe

nt on food?
Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

30%  

Step-by-step explanation:

540/1,800 = .3

.3 x 100 = 30%

Check:

100/30 = 3.33333333

3.33333333 x 540 = 1,800 (roughly because it goes on forever)

bazaltina [42]3 years ago
3 0

Answer:

1,260

Step-by-step explanation:

This is if you subtract those numbers up you would get 1,260

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3x-x-5=2(x+2)-9 what is the answer to x
Eddi Din [679]

Answer:

(-infinity, infinity) or all real numbers

Step-by-step explanation:

7 0
3 years ago
At 10 percent interest, how long does it take to quadruple your money?
horsena [70]

It takes about 14.55 years for quadruple your money

<em><u>Solution:</u></em>

Given that,

At 10 percent interest, how long does it take to quadruple your money

Rule of 144:

The Rule of 144 will tell you how long it will take an investment to quadruple

Here,

Rate of interest = 10 %

Therefore, number of years to quadruple your money is obtained by dividing 144 by 10

<em><u>Rule of 144 Formula: </u></em>

N = \frac{144}{R}

Where:

N = Number of many years times.

144 = Is the constant variable.

R = Rate of interest.

\rightarrow N =  \frac{144}{10} = 14.4

Thus it takes about 14.4 years for quadruple your money.

<em><u>Another method:</u></em>

If initial amount is $ 1 and it if quadruples it should be $ 4

We have to find the number of years if rate of interest is 10 %

Let "n" be the number of years

Then we can say,

Amount = Principal(1+\frac{R}{100})^n

4 = 1(1+\frac{10}{100})^n

4 = 1(1+0.1)^n\\\\4= 1(1.1)^n\\\\4 = 1.1^n\\\\We\ know\ that,\\\\(1.1)^{14.55} = 1.1^n\\\\We\ know\ that\\\\If\ a^m = a^n\ then\ m = n\\\\Therefore,\\\\14.55 = n\\\\n = 14.55

Thus Option D 14.55 years is correct

7 0
3 years ago
What is f(-2)?<br> O-3<br> O-1<br> O1<br> 03
Natasha2012 [34]

Answer:

<h3>.May be it is -1</h3>

Step-by-step explanation:

<h3>There is no formula</h3>
5 0
3 years ago
Read 2 more answers
Select the fraction that is equivalent to one fifth. (2 points)
slega [8]

Answer:

none

Step-by-step explanation:

one \: fifth =  \frac{1}{5} \\ from \: the \: options \: no \: fraction \:  is \: equivalent \: to \: one \: fifth \: and \: non \: of \: the \: fracrions \: can \: be \: reduced \: to \: give \: one \: fifth \\ so \: the \: answer \: is \: none

5 0
2 years ago
Mrs. Martz is travelling to 300 miles to Florida
Scrat [10]

Answer:

:)

Step-by-step explanation:

300/60%=180

5 0
3 years ago
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