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Anna71 [15]
3 years ago
8

You spend 1/2 of your allowance on Monday. On Tuesday, you spend 1/2 of the amount you have left. On Wednesday, you spend 1/2 of

what remains.
What fraction of your allowance do you have left?
Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0
Given that the allowance is variable. It varies in a week.
Let X = be your allowance.

Monday to Wednesday, you already incurred
Monday = X / 2
Tuesday = Monday / 2
Wednesday = Tuesday / 2

The money left you have will be
Money left = X - (Monday + Tuesday + Wednesday)

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How can 29 over 9 be expressed as a decimal?
serious [3.7K]

well first put it  as a fraction so 29/9 and then divide which would give u the answer of 3.2  i hoped i helped

8 0
3 years ago
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PLEASE HELP!!!!!!!!!!!!!!!!!!!!!
Shalnov [3]

Answer:

D i think sorry if wrong

Step-by-step explanation:

8 0
3 years ago
QUICK QUICK PLZZ! 1 MINUTE ONLY
frosja888 [35]

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4 years ago
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I hope I am getting this right. 25 is increased to 100 is the answer 300%?
Mandarinka [93]
Whoa just a second there.

What is the question ?

Is the question "Find the percent of increase ?"

In that case, the answer is 300% .
Here's why:

The amount of increase is 75.

The amount of increase as a fraction of
the original amount is
                                       75 / 25  =  3.00 .

To change any number to a percent,
move the decimal point 2 places that way ===> .

                                           3.00  =    300% .
______________________________

The question could have been different.

It could have been "What is the amount of the increase ?"
That's 75.

It could have been "How many times larger is 100 than 25 ?"
100 is 4 times as large as 25, and 3 times larger.

It could have been "How many times has 25 been increased ?"
This is a terrible question ... there are a lot of those in schools.
The answer could be "25 was only increased once, by 75."
The answer could be "25 was increased to 4 times its size."
The answer could be "25 was increased by 3 times its size." 
8 0
3 years ago
Which expressions are equivalent to 42-5? Choose all the correct answers. Show your work in arriving at your answers.
frozen [14]

Answer:

B, C, E

Step-by-step explanation:

<u />

<u>Exponent Rules</u>

a^b \cdot a^c=a^{b+c}

\dfrac{a^b}{a^c}=a^{b-c}

a^n \cdot b^n=(ab)^n

a^0=1

\dfrac{1}{a^b}=a^{-b}

(a^b)^c=a^{bc}

\textsf{A}\quad42^{-3} \cdot 42^8=42^{-3+8}=42^5

\textsf{B}\quad \dfrac{42^{-7}}{42^{-2}}=42^{-7-(-2)}=42^{-5}

\textsf{C}\quad \dfrac{6^{-5}}{7^5}=6^{-5} \cdot 7^{-5}=(6 \cdot 7)^{-5}=42^{-5}

\textsf{D}\quad 42^0 \cdot 42^5=1 \cdot 42^5=42^5

\textsf{E}\quad \left(\dfrac{1}{42^{-5}}\right)^{-1}=(42^5)^{-1}=42^{-5}

\textsf{F}\quad \left(\dfrac{6^{-5}}{7^5}\right)^{-1}=\left(6^{-5} \cdot 7^{-5}\right)^{-1}=\left(\left(6 \cdot 7\right)^{-5}\right)^{-1}=42^{-5(-1)}=42^5

3 0
2 years ago
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