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harina [27]
3 years ago
13

In 2009, the life expectancy is about 80 years. Assume that, due to modern advances, life expectancy gains 5.5 years every decad

e. From 2009, in how many years would humanity achieve a life expectancy of 110 years?
Mathematics
1 answer:
Rus_ich [418]3 years ago
4 0

Answer:

60 years

Step-by-step explanation:

2009 -> 80 years

             +5.5

2019 ->  85.5 years

             +5.5

2029  -> 91 years

              +5.5

2039  -> 96.5 years

             +5.5

2049  -> 102 years

              +5.5

2059  -> 107.5 years

              +5.5

2069  -> 113 years

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The school band is ordering health bars to sell for a fundraiser. The company that sells the bars charges $0.40 per bar plus $20
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Answer: They can order from 0 to 449 bars, but no more.

Step-by-step explanation:

Given: The school band is ordering health bars to sell for a fundraiser. The company that sells the bars charges $0.40 per bar plus $20.00 for shipping regardless of the size of the order. The band must spend less than $200.00 on bars for the fundraiser.

The inequality below relates x, the number of bars that could be ordered, with the shipping costs and their spending requirements.

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4 0
3 years ago
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Select the correct answer.
nydimaria [60]

Answer:

It is CD

Step-by-step explanation:

because 300+200=500, juts times it by 3 and divide

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