4(2x+10)= 0
8x+40=0
subtract 40 from both sides
8x+40-40=0-40
8x=-40
x=-40/8
x=-5

4(2x-10)=0
8x-40=0
Add 40 from both sides
8x-40+40=0+40
8x=40
x=40/8
x=5

4 0

3 years ago

Read 2 more answers

I dont know how to make 0.3 as a fraction and then simplify.

Lapatulllka [165]

0.3 is 3/10, (which is already simplified) because .3 is out of 1. Which means that that 1 is 10. Which is 3/10.

7 0

3 years ago

Read 2 more answers

Please help!!! I will give 20 points and brainliest answer to the correct answer!!

Dafna1 [17]

Answer:

y-intercept = (0, 2.5)

x-intercept = (2.143, 0)

Step-by-step explanation:

y - intercept:

This is when x = 0 so

-7(0) - 6y = -15

-6y = -15

y = -15/-6

y = 2.5.

x_intercept:

-7x - 6(0) = -15

-7x = -15

x = -15 /-7

= 2.143.

8 0

3 years ago

The consecutive sides of a quadrilateral have lengths (17 - x), (24 - x), (40 - 3x) and (x + 1). If the quadrilateral is a parre

Sveta_85 [38]

The perimeter is: $-5x+82$

Step-by-step explanation:

We have to add all the sides to find the perimeter.

Given sides are:

$Side\ 1: 17-x\\Side\ 2: 24-x\\Side\ 3: 4-3x\\Side\ 4: x+1$

Perimeter is the measurement of outer boundary of a closed geometrical figure.

Let P be the perimeter

Then

$P = Side\ 1 + Side\ 2+ Side\ 3+Side\ 4\\P = (17-x) + (24-x) + (40-3x) + (x+1)\\P = 17-x+24-x+40-3x+x+1$

Combining like terms

$P = -x-x-3x+x+17+24+40+1\\P = -6x+x+82\\P = -5x+82$

Hence,

The perimeter is: $-5x+82$

Keywords: Perimeter, Parallelogram

Learn more about perimeter at:

#LearnwithBrainly

7 0

3 years ago