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pashok25 [27]
3 years ago
9

If x-5(x-7)=-7 then x equals what?

Mathematics
1 answer:
NeX [460]3 years ago
7 0
Expand

simplify x - 5x + 35 to -4x + 35

subtract 35 from both sides

simplify -7 - 35 to -42

divide both sides by -4

two negatives make a positive

simplify 42/4 to 21/2

Answer: x = 21/2.
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What is the common ratio of the geometric sequence below?
Lilit [14]

Answer:

The correct answer is A -3.

Step-by-step explanation:

18/(-3)=-6

To get to -6 from 18 you need to divide by -3.

To get to 2 from -6 you will divide by -3.

5 0
3 years ago
Is x = 9 in the solution set of the inequality x + 14 &lt; 20<br> Yes or no
notsponge [240]

Answer: No

Step-by-step explanation:

Data: x+14<20

x=9? Is what your trying to find

<u>Step one, Isolate x by subtracting 14 on both sides</u>

X+14-14<20-14=X=6

Reason: Since you are trying to find if x=9, you have to isolate it. The way to do that is to get rid of +14 by subtracting it by 14. However, since what you do to one side you do to the other, you subtract +20 by 14 to get 6.

Since x=6 isn't x=9, the answer is No

Answer: No

I hope this helps!

7 0
3 years ago
At the homecoming, you buy 12 ride tickets and some nachos that cost $6. If you spent a total of $21, how much were the ride tic
Arlecino [84]

Answer:

$1.25

Step-by-step explanation:

21-6=15, and 15/12=1.25

7 0
3 years ago
4. Which relation is a function?
Lorico [155]

Answer:

It's B.

Step-by-step explanation:

That is B because there are no duplicate x-values in the ordered pairs.

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4 0
3 years ago
Read 2 more answers
Which unit rate is equivalent to 19 miles per gallon?
statuscvo [17]

Answer:

B

Step-by-step explanation:

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It is the same as asking how many times does 3 go into 57, or how many miles is their per one gallon.

57 divided by 3 equals 19, so B would be the correct answer.

7 0
3 years ago
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