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Nataliya [291]
3 years ago
10

I will give Brainiest if you are right

Mathematics
2 answers:
victus00 [196]3 years ago
6 0

Answer:

The answer is F!

Step-by-step explanation:

Vaselesa [24]3 years ago
6 0

The dot starts at 7 with the arrow going towards the left.

Seeing how 15 on the right side (of all inquealities) is positive, that means if we subtract both sides from positive 8, we will get positive 7 on the right side.

So we want the variable x to be equal to 7 or less than 7.

ELIMINATE choice F.

ELIMINATE choice H & J.

<h3>ANSWER: choice G</h3>

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Tanya [424]

Answer: 31

Step-By-Step Explanation:

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3 years ago
Simplify the expression 8x^-4 y^-8/-2xy^5 (Note ^ equals to the power of)
krek1111 [17]
-4/x^5y^13 because since you have negative exponents on the top you switch them to the bottom 
7 0
3 years ago
For what value of b makes this equation true? (Solve for b)<br> b +9 = -2
neonofarm [45]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>b = -11</em>

▹ Step-by-Step Explanation

b + 9 = -2

     -9   -9

b = -2 - 9

b = -2 + -9

b = -11

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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7 0
3 years ago
Read 2 more answers
If 1800ml of a juice drink is 15% grape juice, how much grape juice should be added to make a drink that is 20% grape juice?
Svetach [21]

Answer:

  112.5 mL

Step-by-step explanation:

Let x represent the amount of grape juice to add. Then the total amount of grape juice in the mix is ...

  0.15(1800) +x = 0.20(1800+x)

  270 +x = 360 + 0.2x . . . . . . eliminate parentheses

  0.8x = 90 . . . . . . . . . . . . . . . subtract 270+0.2x

  x = 90/0.8 = 112.5 . . . . . . . . divide by the coefficient of x

112 mL of grape juice should be added to make a mix that is 20% grape juice.

7 0
4 years ago
Solve for x. 3^x−1=9^x+2 <br> Enter your answer in the box.
slava [35]

Answer:

-5 =x

Step-by-step explanation:

3^(x-1) = 9^(x+2)

Replace 9 with 3^2

3^(x-1) = 3^2^(x+2)

We know that a power to a power means the powers are multiplied

a^b^c = a^(b*c)

3^(x-1) = 3^(2x+2)

When the bases are the same, the powers have to be the same

x-1 = 2x+4

Subtract x from each side

x-x-1 =2x-x+4

-1 =x+4

Subtract 4 from each side

-1-4 =x+4-4

-1-4 = x

-5 =x

4 0
3 years ago
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