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3 years ago

Read this main idea: Scientists use special tools to study stars. Choose three details that go with the main idea.

Mathematics

2 answers:

jeka57 [31]3 years ago

7 0

Answer:

Main Idea: The Sun isnt the biggest nor the hottest star

The largest stars, called supergiants, are 1,500 times bigger than our sun.

Blue stars are the hottest.

It is a medium sized yellow star.

Step-by-step explanation:

Read carfeully

Have a nice day :)

jolli1 [7]3 years ago

3 0

The main idea is that the sun isn’t the biggest or the hottest.
Supporting evidence: The largest stars, called super giants, are 1500 times bigger than our son; blue stars are the hottest; the sun ia a medium sized yellow star

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Answer:

139

Step-by-step explanation:

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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)

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

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3 years ago

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Answer:

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Step-by-step explanation:

First, let's look at the -14. Possible factors for that number are (-2, 7) (2, -7) (1, -14) and (-1, 14).

Now, let's look at the -5. How can we make -5 with the pairs that we just found?

The only possible way is 2 and -7 (added together equals -5)

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3 years ago

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