3 years ago

Please explain how to solve it. Thanks!

Mathematics

1 answer:

Cloud [144]3 years ago

4 0

Answer:

129.8

Step-by-step explanation:

its simple 22 sec is how long and he travels at a rate of 5.9 ft s so 5.9•22=129.8

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What is the 308th term of the sequence 11,12.5,14,15.5,17...

Alecsey [184]

$\huge\boxed{471.5}$

The formula for an arithmetic sequence is as follows:

$a_n=a_1+(n-1)d$

In this formula, $a_n$ represents the $n$ th term of the sequence and $d$ represents the common difference between each term.

Plug in the known values.

$a_{308}=11+(308-1)1.5$

Subtract.

$a_{308}=11+307*1.5$

Multiply.

$a_{308}=11+460.5$

Add.

$a_{308}=\boxed{471.5}$

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N-<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2n-3%7D%7B9%7D" id="TexFormula1" title="\frac{2n-3}{9}" alt="\frac{2n-3}{9}" align

Sunny_sXe [5.5K]

Answer: $n = -12$

Step-by-step explanation: $n - \frac{2n - 3}{9} + 2 = \frac{2n + 1}{3}$

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3 years ago

At a bicycle shop, a bicycle costs $49 and a tricycle costs $27. An after-school club buys bicycles and tricycles with a total o

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Let b for the number of bicycles, and t for the number of tricycles.
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b=t+2 =>t=b-2

substitute b for t: 2b+3(b-2)=39
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