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scoray [572]
3 years ago
7

Please help! and explain thank you!

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
6 0

Answer:

D

Step-by-step explanation:

You want to move all terms not containing a to the right side of the equation.

Tju [1.3M]3 years ago
4 0

Answer:

B

Step-by-step explanation:

When you are solving these kinds of problems, it's always best to start with getting rid of the decimal/fraction.

--------------------------------------------------------------------------------------------------------------

We can actually solve for a.

2/3*3=6/3=2

(15+2a=-5)

a=-10

(15+(-20)=-5)

TRUE

a=10 (I think)

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What is 84 seconds to 8 seconds
Inessa05 [86]

Answer:

8 out of 84: 90% decrease

200 out of 238: 16% decrease

Step-by-step explanation:

To find a percent decrease, you first subtract the end number by the initial number. This gives you the change.

ex. 84-8=76

Now you divide the change by the initial number. You'll get a decimal.

ex. 76/84=0.904...

Multiply the decimal times 100, or move the decimal to the right twice.

ex. 0.904... -> 90.4...

Now round to the nearest ones place

ex. 90.4 -> 90%

5 0
3 years ago
Write the word sentence as an equation. Then solve.
nekit [7.7K]

Answer:

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Step-by-step explanation:

8 0
3 years ago
What is ​ BC ​ ?<br><br><br> Enter your answer in the box.
tangare [24]
Lines AB and AC are equal so you set up an equation like so...
4x + 1 = 2x + 23
Subtract 1 from both sides.
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x = 11
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I hope this helps love! :) 
5 0
4 years ago
Given A(-2, 5) and B(13, -7), find the midpoint of AB.​
Dmitrij [34]

Answer:

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Step-by-step explanation:

You would use the mid-point formula for this

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4 0
2 years ago
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Shalnov [3]

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Step-by-step explanation:

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5 0
2 years ago
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