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marin [14]
3 years ago
8

85+3x-5=180 what does x equal

Mathematics
2 answers:
fiasKO [112]3 years ago
5 0

Answer:

x = 100/3

Step-by-step explanation:

85+3x−5=180

Then we can simplify:

3x+80=180

Subtracting 80 from both sides gives:

3x=100

Dividing both sides by 3 gives our answer:

100/3 or 33 1/3

melisa1 [442]3 years ago
4 0

Answer:

33.3 repeating

Step-by-step explanation:

subtract 5 from 85

85-5+3x=180

80+3x=180

Subtract 80 on both sides

80-80+3x=180-80

3x=100

Divide by three

3x/3 =100/3

Turn it into a decimal

100/3=33.3

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A rug is 3 feet longer than 5 times the width. The area of the rug is 92 square feet. What are the dimensions of the rug?
Rzqust [24]

Answer:

36

Step-by-step explanation:

L=W+5

Area=LW

36=(W+5)W

36=W^2+5W

W^2+5W-36=0

(W+9)(W-4)=0

W-4=0

W=4 ANS. FOR THE WIDTH.

L=4+5=9 ANS. FOR THE LENGTH.

PROOF:

36=9*4

36=36

I hope this helped! ;)

4 0
3 years ago
Read 2 more answers
Manda converted the following repeating decimal a fraction. Her work is shown below.
Butoxors [25]

In analyzing Manda’s work, she made a mistake instep 3, she did not subtract one x from the left side.

<h3>What is the fraction about?</h3>

Fractions are known to be the parts of a complete or whole numbers of objects. It is known to have a numerator and a denominator and when solving for it, the rule of BODMAS must be obeyed.

In step 3 we see that (image attached)  she did not subtract one x from the left side. The right thing to do is to use x to cancel out on the both side and that will make the answer to  be correct but she did not.

So her error is seen in step 3 and as such, option C is correct.

See full question in the image attached.

Options are

Analyze Manda’s work. Is she correct? If not, what was her mistake?

A. Yes, she is correct.

B. In step 2, she needed to multiply both sides by 10.

C. In step 3, she did not subtract one x from the left side.

D. In step 4, she did not simplify her fraction.

Learn more about fraction from

brainly.com/question/78672

#SPJ1

6 0
2 years ago
Solve the system by substitution.<br> y = -x<br> y = - 4x + 12
Naddik [55]
16xnhahaauiawoaoaijananawjuwsush
3 0
3 years ago
ellie says, "when i round these three numbers, i get the same number for two of them." anthony says, "hmmm, when i round these n
Stells [14]

Answer:

Ellie is correct because 1,483 and 1,454 would round up to 1,500 but the 1,250 would round up to 1,300

Step-by-step explanation:

3 0
3 years ago
How do you count by 36
AlekseyPX
You count by 36 by adding at 36 every time u go up : 

36, 72, 108,144 , 180 etc
6 0
4 years ago
Read 2 more answers
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