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Strike441 [17]
3 years ago
14

Need help asap 8 points

Mathematics
2 answers:
lubasha [3.4K]3 years ago
7 0
Question 13 is 14 x is 14
cricket20 [7]3 years ago
3 0

I'll solve 11-14 since they are fairly simple problems once you get to understand them :)

  • Remember: what you do to one side of the equation, you do to the other.
  • To get everything on one side of the equation, you perform the opposite operation.
  • Say for example, 4x = 8. Since you are multiplying 4 * x, the opposite operation of multiplication is division, so in this case you would DIVIDE both sides by 4.

11) 15 = 6.5 + x

  • The opposite of addition, 6.5 + x, is subtraction, so subtract 6.5 from both sides.

15 - 6.5 = x

  • 8.5 = x, which is the same as <u>x = 8.5</u>.

12) -3 + x = -17

  • The opposite of subtracting is addition, so add 3 to both sides.

x = -17 + 3

  • <u>x = -14</u>

13) 7x = -98

  • You have 7 * x, which is multiplication, and the opposite of multiplication is division, so divide both sides by 7.

x = -98/7

  • <u>x = -14</u>

14) x/-3 = -7

  • The opposite of division is multiplication, so multiply both sides by -3.

x = -7 * -3

  • <u>x = 21</u>
<h3>Hope this helped, good luck!</h3>
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The sum of the ages of Jeremy and Kimberly is 64 years. 8 years ago, Jeremy's age was 2 times Kimberly's age. How old is Jeremy
TiliK225 [7]

Answer:

36.666 (The six keeps going)

Step-by-step explanation:

In this question you'll be trying to find out what x is.

(x-8), this is from the amount of years ago and 2(56-x) is from subtracting 8 with 64 and the 2 came from the fact that Jeremy is twice the age.

(x-8)=2(56-x)

x-8=102-2x

Now we want to have x by itself  so we'll add 2x on both sides to remove the -2x from the right side.

3x-8=102 (Add up on both sides)

3x=110 (Divide by 3)

x=36.666

4 0
3 years ago
What is true about the sum of the two polynomials?
const2013 [10]

Answer:

f'(x) = -f(x) = 9xy² - 6x²y + 5x³

Step-by-step explanation:

f(x) = –9xy² + 6x²y – 5x³

additive inverse: f'(x) = -f(x) = 9xy² - 6x²y + 5x³

f(x) + f'(x) = f(x) -f(x) = (–9xy² + 6x²y – 5x³) + (9xy² - 6x²y + 5x³) = 0

8 0
3 years ago
What is the rule for the pattern 3 12 6 24 12 48 24
schepotkina [342]

Multiply by 4 is your rule

3 x 4 = 12

6 x 4 = 24

12 x 4 = 48

To solve for the answer for 24, multiply it by 4

24 x 4 = 96

96 is the match for 24

hope this helps

8 0
3 years ago
Read 2 more answers
A coordinate grid with 2 lines. The first line is labeled y equals negative StartFraction 7 over 4 EndFraction x plus StartFract
LekaFEV [45]

Answer:

Question 1. (2.2, -1.4)

Question 2. (1.33, 1)

Step-by-step explanation:

Equations for the given lines are

-----(1)

It is given that this line passes through two points (0, 2.5) and (2.2, 1.4).

------(2)

This equation passes through (0, -3) and (2.2, -1.4).

Now we have to find a common point through which these lines pass or solution of these equations.

From equations (1) and (2),

x =

x = 2.2

From equation (2),

y = -1.4

Therefore, solution of these equations is (2.2, -1.4).

Question 2.

The given equations are y = 1.5x - 1 and y = 1

From these equations,

1 = 1.5x - 1

1.5x = 2

x =

Therefore, the solution of the system of linear equations is (1.33, 1).

5 0
3 years ago
Read 2 more answers
Simplify 3(8x+2y)<br> A. 30x+y<br> B. 24x+2y<br> C. 24x+6y<br> D. 30xy
Naddika [18.5K]

Answer:

The choose C. 24x+6y

Step-by-step explanation:

3(8x + 2y)  = 24x + 6y

I hope I helped you^_^

4 0
3 years ago
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