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Iteru [2.4K]
3 years ago
9

The coin jar was filled with pennies and nickels in the ratio of 7 to 2 if there were 28 nickels in the jar how many coins were

there
Mathematics
1 answer:
mylen [45]3 years ago
8 0
I think 124 im not sure though but i think 
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In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years. Assuming that life expectancy bet
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Answer:

49145 years

Step-by-step explanation:

In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years.

Assuming that life expectancy between 2000 and 2100 increases by the same percentage as it did between 1900 and 2000,what will life expectancy be for women in 2100?

In 10 years, the expectancy increased by 85/45 = 17/9

between 2000 and 2100, it will increas by 10 time 10 years, so expected expectancy is  85*(\frac{85}{45})^{10} = 49145  years

4 0
3 years ago
Which polynomial expression represents the perimeter of the rectangle? (3a + 4) (2a - 1)​
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Answer:

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Step-by-step explanation:

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2 years ago
Problem page the sum of two numbers is 56 . one number is 3 times as large as the other. what are the numbers?
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3 years ago
Slove the equation<br> 6x+4/5=8
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3 0
3 years ago
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Zielflug [23.3K]
-4x + y = 10
y = 4x + 10

Slope = 4
x=3, y = 4*3 + 10 = 22
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3 years ago
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