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umka2103 [35]
1 year ago
7

6. Five years ago, Ross was N times as old as

Mathematics
1 answer:
Tema [17]1 year ago
8 0

Answer:

14N+5

Step-by-step explanation:

Five years ago; Rose Nx

Amanda x

Now; Rose Nx+5

Amanda x+5=19

x=19-5=14years

Rose(NOW) =14N+5

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3 years ago
A gallon of milk cost $2.90 in 2002. In 2018, it cost
lutik1710 [3]

Answer:

<em>The cost of a gallon of milk changed 31%</em>

Step-by-step explanation:

<u>Percent Change</u>

Is the difference between two values of the same variable in different times or conditions, expressed as a percentage of the original value.

The formula is:

\displaystyle Pc=\left |\frac{v1-v2}{v1}  \right |\cdot 100\%

Where

v1 = original value

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The gallon of milk cost v1=$2.90 in 2002 and v2=$3.80 in 2018. The percent change is:

\displaystyle Pc=\left |\frac{2.90-3.80}{2.90}  \right |\cdot 100\%

\displaystyle Pc=\left |\frac{-0.9}{2.90}  \right |\cdot 100\%

Pc = 31%

The cost of a gallon of milk changed 31%

8 0
3 years ago
Ms sling deposited 850 in a savings account that paid 4.25% simple interest. What was the balance in her account at the end of 2
andrezito [222]
777.75

after 2 years. Because 4.25 is equal to .0425 then times that by the number.
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