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2 years ago

Evaluate 2y + 4 for y = 15.

Mathematics

2 answers:

postnew [5]2 years ago

7 0

Answer: 34

Step-by-step explanation

Mkey [24]2 years ago

4 0

You just have to put it together.

2(15)+4 =

30+4=34

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2 years ago

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Veseljchak [2.6K]

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2 years ago

You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site

tatiyna

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

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2 years ago

Kristina deposits $850 into a savings account that has a yearly interest rate of 6.5%. determine the total amount of money that

Lerok [7]

Answer:

Answer is 33. 15

Step-by-step explanation:

So I added the number of days 18 months could have then multiplied by 6.5%

3 0

1 year ago

Given the matrices: 1 2 A= 1 -1 2 1 1 B= 3 4 Calculate AB: C11 C12 [2.1] х 1 2 3 4 C21 C22 C11 = C12 = -2 C22 - C215 DONE

eduard

Answer:

$\:c_{11}=-2,\:\:\:c_{12}=-2$

$\:c_{21}=5,\:\:\:c_{22}=8$

Step-by-step explanation:

Given the matrices

$A=\begin{pmatrix}1&-1\\ 2&1\end{pmatrix}$

$B=\begin{pmatrix}1&2\\ \:3&4\end{pmatrix}$

Calculating AB:

$\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}$