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3 years ago

If 3x-13=8, find the value of -4?

Mathematics

1 answer:

sukhopar [10]3 years ago

7 0

If you're looking for x then it's 7. The value of -4 is -4.

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Solve for k 4.5+1.5k=18−3k

sertanlavr [38]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{k = 3}}}}}$

Step-by-step explanation:

$\sf{4.5 + 1.5k = 18 - 3k}$

Move 3k to left hand side and change it's sign

Similarly, move 4.5 to right hand side and change it's sign

$\longrightarrow{ \sf{1.5k + 3k = 18 - 4.5}}$

Collect like terms

$\longrightarrow{ \sf{4.5k = 18 - 4.5}}$

Subtract 4.5 from 18

$\longrightarrow{ \sf{4.5k = 13.5}}$

Divide both sides by 4.5

$\longrightarrow{ \sf{ \frac{4.5k}{4.5} = \frac{13.5}{4.5} }}$

Calculate

$\longrightarrow{ \sf{k = 3}}$

Hope I helped!

Best regards! :D

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3 years ago

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rusak2 [61]

It is correct. Nice job

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3 years ago

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Write 45 1/2% as a fraction in

Natalka [10]

45.5% (another way to write 45 1/2 %
= .455 or 455/1000

Reducing by 5 we get 91/100

How did I get 91/100? I divided 455/1000 by 5 (numerator and denominator) And I got 91/100

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3 years ago

Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.

Marina CMI [18]

Answer: 1661.9 yards

Step-by-step explanation:

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The population of grizzly bears at Yellowstone National Park has been threatened with local extinction since 1975. Through many

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The complete statement is: In the year 2010, there will be approximately 600 grizzly bears at Yellowstone National Park.

<h3>Find the approximate value from the graph.</h3>

The complete question is added as an attachment

From the attached graph, we have the following highlights

x represents the number of years since 2009
y represents the number of grizzly bears

So, the value of A(1) means that we find the number of grizzly bears in the year 2010

According to the graph, the value of the function where x = 1 is 600

So, we have:

A(1) = 600

<h3>Based on your answer for part A. Complete this sentence.</h3>

The incomplete sentence is given as:

In the year there will be approximately grizzly bears at Yellowstone National Park.

A(1) = 600 represents the number of grizzly bears in the year 2010

So, the complete statement is:

In the year 2010, there will be approximately 600 grizzly bears at Yellowstone National Park.