All categories

3 years ago

I need help finding x! Please show work for both!

Mathematics

2 answers:

Butoxors [25]3 years ago

5 0

Answer:

1. -5

2. -2

Step-by-step explanation:

1. 25-3x=40

-25 -25

-3x=15

/-3 /-3

x=-5

2. 1/3(x-10)=-4

1/3x=-4

x3 x3

x-10=-12

+10 +10

x=-2

Alenkinab [10]3 years ago

4 0

1. Answer x=-5
You would subtract 25 from each side of the equal sign, taking 25 away from 40 and 25 away from 25, isolating the x. So you would then have -3x=15. You would then divide each side by -3, and getting x=-5

You might be interested in

Hope someone can help me with this

postnew [5]

The perimeter:

40+35+16+16+125.7= 232.7 m

btw lowkey frustrating that they alternate between cm and m

8 0

4 years ago

About what percent is 6,315 pounds of 20,00?

Tasya [4]

31.5749...9...9....9....9....

6 0

3 years ago

Read 2 more answers

The ice skating rink rents 25 pairs of skates each hour. Write an expression that represents the pairs of skates rented in h hou

Nookie1986 [14]

175 pairs of skates are rented for 7 hours.

Step-by-step explanation:

Given,

Pairs of skated rented each hour = 25

Let,

Number of hours = h

Total pairs rented = T

T = Pairs rented each hour * number of hours

T = 25h

Evaluate the expression for 7 hours.

h = 7

$T=25(7)\\T=175$

175 pairs of skates are rented for 7 hours.

Keywords: multiplication, linear expression

Learn more about multiplication at:

#LearnwithBrainly

3 0

3 years ago

What is the slope of D and E??

Mazyrski [523]

Answer:

-4 and 0

Step-by-step explanation:

Rise over Run would give us the slope.

In the first graph, It goes down 4 while it goes 1 to the right.

This means that -4/1 = -4.

The second graph does not go up or down, meaning 0, while it goes 1 to the right.

This means that 0/1 = 0.

4 0

3 years ago

the measurements of a photo and it's frame are shown in the diagram. Write a polynomial that represents the width of the photo.

suter [353]

Answer:

The width of the photo is $4w^2+6w+4$ .

Step-by-step explanation:

From the given figure it is notices that the total width of the frame is

$6w^2+8$

The photo is covered by a frame border and the width of the border is

$w^2-3w+2$

To find the width of the photo we have to subtract the width of upper frame border and lower frame border from the total width of frame.

Width of the photo is

$\text{Width of the photo}=\text{Width of the frame}-2(\text{Width of the frame border})$

$\text{Width of the photo}=6w^2+8-2(w^2-3w+2)$

$\text{Width of the photo}=6w^2+8-2w^2+6w-4$

$\text{Width of the photo}=4w^2+6w+4$

Therefore the width of the photo is $4w^2+6w+4$ .

4 0

3 years ago