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Fudgin [204]
3 years ago
9

Solve for x.

Mathematics
1 answer:
Lana71 [14]3 years ago
4 0

Answer:

B. -5

Step-by-step explanation:

this is quite simple, so what you are going to want to do is multiply -3 by 4, and -16, so distribute that and you'll end up with

-12x+48= -12

then you want to subtract 48 from both side to leave the x on one side alone

that will be -12x= -60

after that you have to divide both sides by -12 to find your x

so then you will see that your x is = -5! hope this helps!!

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The sum of three consecutive even numbers is 90
AleksAgata [21]
Find the cube root of 90 if there isn't, try to compare irrational numbers
8 0
2 years ago
Bob runs 3 miles in 28 minutes at that same rate how many miles would he run in 42 minutes
Liono4ka [1.6K]
42/28 = 1.5
3 times 1.5 = 4.5
he would be able to run 4 and a half miles in 42 minutes
4 0
3 years ago
Prove that 3(x+1)(x+7)-(2x+5)² is never positive
scZoUnD [109]

Step-by-step explanation:

3(x + 1)(x + 7) − (2x + 5)²

3(x² + 8x + 7) − (4x² + 20x + 25)

3x² + 24x + 21 − 4x² − 20x − 25

-x² + 4x − 4

-(x² − 4x + 4)

-(x − 2)²

A squared number is never negative (provided x is a real number), so -(x − 2)² is never positive.

3 0
2 years ago
Read 2 more answers
How to solve this question
MAVERICK [17]
Hello there.

<span>4 3/4 - 2 3/4

19 over 4 - 2 3/4 = 19/4 - 11/4 = ?

After working that out. Your answer should be 2

Answer: 2</span>
4 0
3 years ago
3 - 6а = 9 - ба<br> i need help :( !
Kisachek [45]

Answer:

no solution

Step-by-step explanation:

3 - 6а = 9 - ба

Add 6a to each side

3 - 6а+6a = 9 - ба+6a

3 = 9

This is never true so there is no solution

4 0
3 years ago
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