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skelet666 [1.2K]
3 years ago
9

HELP!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
4 0
A. 5^3 * 5^4 = 78,125
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First examples pt 1 no one answer
andrew11 [14]

Answer:

  It takes the second worker 11 hours to do the job alone  

Step-by-step explanation:

The problem tells you how to work it.

  \dfrac{1}{11}+\dfrac{1}{x}=\dfrac{2}{11}\\\\x+11=2x \qquad\text{multiply by 11x}\\\\11=x \qquad\text{subtract x}

x = 11 tells you the second worker takes 11 hours to do the job alone.

_____

You can also work directly with the fractions. Subtract 1/11 and you have ...

  1/x = 1/11

It should not be a real stretch to see that x=11. If you need, you can multiply both sides by 11x to get 11=x.

3 0
3 years ago
A women invest $688.88 in a savings account that pays 9.25%annually.how much is in the account at the end of the year?
adoni [48]
Simple interest=prt
=688.88 (.0925)(1)
=63.72

Balance=investment + interest earned
=688.88+63.72=$752.60
7 0
3 years ago
Reduce the fraction completely.96/53
Alex777 [14]
1 43/53 is the answer in a mixed fraction. 
3 0
3 years ago
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Sarah bought a sweater at the sale price of $18 the original cost of the sweater was $40 what percent represents the discount th
igomit [66]
Let’s remember the most basic thing in percentages, the equation.

Percent x Whole = Part.

We know the whole, and the part, but we are trying to find the percent, so we have to divide the two, first turn your whole and part into a decimal.

Percent x 0.4 = 0.18, so we divide 0.18 by 0.4

0.18/0.4 = 0.45

0.45 = 45%
8 0
3 years ago
Convert to scientific notation<br><br> A) 2370000 m B) 0.00531 g
TEA [102]
2370000 to scientific notation = 2.37 x 10^6

0.00531 to scientific notation = 5.31 x 10^-3
6 0
3 years ago
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