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Lerok [7]
3 years ago
10

Number 7 I need help

Mathematics
1 answer:
frutty [35]3 years ago
3 0

3(2x+5)= -19

distribute

3*2x+3*5 = -19

6x+15 = -19

ERROR in problem

 she distributed the 3 incorrectly, and should have .......

we can't see the end of the answers

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URGENT!!!!!
Anna11 [10]

h=20w

in one week hector works 20 hours

in two hector works 40 etc


h = hours and w = weeks. the money is just extra information.

h=20w works because if it has been two weeks we substitute the w with the number 2 and can solve

h=20(2)

h=20x2

h=40

This proves that the equation is true

7 0
3 years ago
What is the value of x in theequation 2.5 (6x - 4) = 10 + 4 (1.5 +0.5 x)?
Zarrin [17]

Answer:

x = 2

Step-by-step explanation:

Let's solve your equation step-by-step.

2.5(6x−4)=10+4(1.5+0.5x)

Step 1: Simplify both sides of the equation.

2.5(6x−4)=10+4(1.5+0.5x)

(2.5)(6x)+(2.5)(−4)=10+(4)(1.5)+(4)(0.5x)(Distribute)

15x+−10=10+6+2x

15x−10=(2x)+(10+6)(Combine Like Terms)

15x−10=2x+16

15x−10=2x+16

Step 2: Subtract 2x from both sides.

15x−10−2x=2x+16−2x

13x−10=16

Step 3: Add 10 to both sides.

13x−10+10=16+10

13x=26

Step 4: Divide both sides by 13.  

x=2

5 0
3 years ago
What is the value of x and the length of DGE
pogonyaev

Answer:

X=3

Line DG =32

I don't know exactly it is right or not

8 0
3 years ago
You obtain a simple interest loan from National city for $2500 at 7.6% for 5 years. Find the amount of interest on the loan
nevsk [136]

Answer:

950

Step-by-step explanation:

2500(0.076)(5)  = 950

6 0
3 years ago
Find the inverse y=3x+2
Gwar [14]

y=3x+2\\\\\text{replace x with y and y with x}\\\\3y+2=x\\\\\text{solve for y}\\\\3y+2=x\ \ \ \ \ |-2\\\\3y=x-2\ \ \ \ \ |:3\\\\\boxed{y=\dfrac{x-2}{3}}

4 0
3 years ago
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