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2 years ago

If you were to solve the following system of equations by using a matrix,

Mathematics

1 answer:

Studentka2010 [4]2 years ago

4 0

Answer:

I believe it is C but it's good to double check

Step-by-step explanation:

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What is 720,000 written in scientific notation?

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Answer:

=7.2×10⁵

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2 years ago

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The student council is selling rolls of gift wrap and ribbon for the holiday season. The council charges $10 for a roll of gift

NikAS [45]

Answer:

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3 years ago

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Help please this is confusing and also show your work

liq [111]

Answer:

Step-by-step explanation:

Volume is length · width · height, so you can add another column with the volumes:

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2 years ago

Multiple Choice: Please select the best answer.

PSYCHO15rus [73]

D. 171

-

Explanation:

4(2+5)^2 - 5^2

4 x 7^2 - 5^2

4 x 49 - 25

196 - 25

171

Answer: D. 171

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2 years ago

1. What is the constant of proportionality, k, of Kevin's wage? Greg's? Savannah's?

Gala2k [10]

Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

Part b) The constant of proportionality of Greg's wage is $k=\$9.00\ per\ hour$

Part c) The constant of proportionality of Savannah's wage is $k=\$9.50\ per\ hour$

Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

Kevin's wage

Take any point from the table

I take the point (2,16.50)

$k=\frac{16.50}{2}=\$8.25\ per\ hour$

Greg's wage

Take any point from the table

I take the point (3,27.00)

$k=\frac{27.00}{3}=\$9.00\ per\ hour$

Savannah's wage

Take any point from the table

I take the point (2,19.00)

$k=\frac{19.00}{2}=\$9.50\ per\ hour$

3 0

3 years ago