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Mama L [17]
3 years ago
9

What value of r makes –6r + 2(r + 2) – 5 = -20 true?

Mathematics
1 answer:
OlgaM077 [116]3 years ago
4 0
Hello!

To find the answer we need to solve for r. First we undo the parentheses.

-6r+2r+4-5=-20

Now we combine like terms.

-4r-1=-20

We add one to both sides.

-4r=-19

Divide both sides by -4.

r=4.75

I hope this helps!
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Answer the question above on the ixl tab, please.
kramer

Answer:

<h2>The answer is 10</h2>

Step-by-step explanation:

The formula for finding the combination of two given positive numbers is given by

<h3>_{n}C _{r} =  \frac{n!}{(n - r)!r!}</h3>

Where n and r are positive numbers

From the question we have

5 C 3

<u>Simplify</u>

That's

<h3>\binom{5}{3}  =  \frac{5!}{(5 - 3)!3!}  =  \frac{120}{2! \times 3  !}  \\  =  \frac{120}{2 \times 6}  \\  =  \frac{120}{12}</h3>

We have the final answer as

<h3>10</h3>

Hope this helps you

8 0
3 years ago
If 3 bars of chocolate cost $15.00 ghana cedis how much will 7 bars cost ratio
Rudiy27

Answer:

7 chocolate bars will cost $35

Step-by-step explanation:

if 3 cost $15 then 1 bar would cost 5 dollars and 5x7=35

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6 0
3 years ago
BRAINLIEST
kenny6666 [7]

Answer:

B. 1 1/3

Step-by-step explanation:

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hope this helps :)

4 0
2 years ago
Read 2 more answers
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Answer:

I know a little of this

Step-by-step explanation:

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Answer:

17

Step-by-step explanation:

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