Mathematics Middle School

What value of x makes this equation true? HELP ASAP PLZ PLZ PLZ

18−7x=3+8x

What Value Of X Makes This Equation True? HELP ASAP PLZ PLZ PLZ187x=3+8x

Answers

Answer 1

Answer:

x = 1

Step-by-step explanation:

18 - 7x = 3 + 8x

-18        -18

-7x = -15 + 8x

-8x          -8x

-15x (÷ -15) = -15 (÷ -15)

x = 1

Answer 2

Answer:

x = 1

Step-by-step explanation:

18 = 3 + 15 x

15 = 15x

x = 1

PLUG IN THE 1 TO CHECK:

18 - 7 = 11

3 + 8 = 11

11 = 11

Related Questions

help plssssssssss i need some help

Answers

Answer:

it is a+2b, the one you have selected.

Step-by-step explanation:

I believe the answer is a+2b

IF YOU HELP ME I WILL GIVE YOU BRAINIEST

Answers

he used the wrong sign. it should be the less than it equal to sign. 6g-10>_35

pls help this is really complicated for my brain so if anyone knows how to do backtracking and undoing any help is accepted!!!

Answers

Answer:

2.73     8.75

Step-by-step explanation:

n = 1  

1 (DOUBLE) = 1+1 = 2  

2 +3/4 = 1.5

1.5 +2 = 3.5  

3.5 x 0.22 = 0.77

3.5 - 0.77 = 2.73

n = 1

1 + 3/4 = 1 + 0.75 = 1.75

1.75 (DOUBLE) = 3.5

3.5 x 2 1/2 = 8.75

2.72 8.75 good luck :)))

please help i will give brainliest

Answers

Answer:

4 students scored 43 points.

Step-by-step explanation:

Answer: 4 students scored 43 points

What does r = in r=__x__?

Answers

R would equal x, as it states that lol
R would just equal x

The graphs show the amounts in two different bank accounts over several months.

Explain whether Account A shows a proportional relationship between months and the amount in the account.
Explain whether Account B shows a proportional relationship between months and the amount in the account.
Analyze the graph that shows a proportional relationship. Explain the meaning of the points ( x, y) and ( 1, r) where is the unit rate.

Answers

Answer: What

Step-by-step explanation:

I need help plz will give brainliest

Answers

Answer:

$10,000

Step-by-step explanation:

Cross multiply and divide by 55.

Hope this helps!

$10000

Step-by-step explanation:

5500 = 55% × amount paid for the car(p)

5500 = 55÷100 × p

5500×100 = 55p

550000 = 55p

550000÷55 = 55p÷55

10000 = p

Select the pair(s) of ratios that form a proportion. This is a test and I really need answers.

3/11, 15/33
42/18, 7/3
14/36, 2/5
22/6, 33/9

Answers

Answer:

3/11, 15/33 I think

Step-by-step explanation:

Pls help me with this one two.

Answers

Answer:

C

Step-by-step explanation:

C because they are all even! (Meaning if spun it around, it has an even chance to land on any color)

Answer:

C

Step-by-step explanation:

They have to be equally proportioned to have a fair probability.

The system of equations relates the distance, y,
from a station of two trains and the speed, x, at which they are moving.
y + 10x = 250
2.5y = -25x + 625
a. What does the system of equations tell you about the speed
of the trains?
b. What does the solution tell about the locations of the trains if they
left the station at the same time? If they left at different times?

Answers

Answer:

a . It is a simultaneous speed.

please do 8 and 9 and i will give u brainiest

Answers

Answer:

i can't see the question for 8

and for 9 what object are they asking you to find the length and width of?

Step-by-step explanation:

The minimum number of triangles needed to construct the polygon Sophia made is 3. Which could show Sophia’s polygon?
A 4-sided figure.
A 6-sided figure.
A 5-sided figure.
A 4-sided figure.

Answers

A 5-sided figure could show sophia’s polygon

Sophia's polygon is, ''5 - sided polygon'' or ''Pentagon.''

What is mean by Triangle?

Any triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

We have to given that;

The minimum number of triangles needed to construct the polygon Sophia made is 3.

And, To find Sophia's polygon.

Now, We know that;

The Shape of Pentagon is made with 3 triangles.

Hence, Sophia's polygon is known as,

⇒ 5 - sided polygon or Pentagon.

Therefore, We get;

⇒ The polygon make by Sophia's is, Pentagon.

Learn more about the rectangle visit:

brainly.com/question/2607596

#SPJ3

Can you plz pick only 2 of these and make sure you have the steps to go with it cuz it’s due today

Answers

Answer:

two of whats

Step-by-step explanation:

Are you trying to get me to say like the one like candy and Blabla if it is in that case the first one is candy

UGH! RSM!!!!!!!!!!!!!!!!!!!!! John's family visited his grandmother over the weekend. The drive to her house took 2 hours at their usual speed. the trip home took 15 minutes longer because traffic was bad and they had to drive 5 mph slower. How many miles away is john's grandmother's house? will give BRAINLIEST! +10pts!

Answers

(1)- 30
Hope this helps!

Answer:

90 miles!

Step-by-step explanation:

there are two parts to the problem, meaning you'll need 2 equations.

let's call the distance TO the grandma's house d1, and BACK from the grandma's house d2.

KEY:

time TO g'ma house= t1

time FROM g'ma house=t2

(replace the t's with 's' for speed, with the '1' for to, and '2' for from)

(distance is a constant so d1 is always equal to d2).

-------------

d1=s1+t1, d2=s2+t2

we know what t1 is. 2 hours.

d1=s1•2

meaning that d2 is also equal to that.

s1•2=(s1-5)•2 1/4

2s1=2 1/4 s1-11 1/4

11 1/4= 2 1/4 s1-2s1

11 1/4 = 1/4 s1

s1 (to g'ma)=45 mph

distance is speed times time.

so 45•2 (hr) = 90.

help me please its easy

this is division btw

Jane works at The Bottling Company. She needs to put 8,500 bottles of water into cases. So far she has put 2,136 in cases. How many cases can Jane fill with the remaining bottles?


Jane can fill __ cases and will have __ bottles left. (fill in the blanks)


pls if you dont know ignore this

Answers

Answer:

Jane can fill 6364 cases with the remaining 6364 bottles.

Step-by-step explanation:

265 cases will be filled and she will have 4 bottles left.

3) Alexander is a stockbroker. He earns 12​% commission each week. Last​ week, he sold $6,400 worth of stocks. How much did he make last week in​ commission?
(if you answer this may you please show your work)

Answers

Answer:

he made 768 in commission

Step-by-step explanation:

6,400-12% is 5632

6,400-5632= 768

i hope this helps you with your math

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Divide the sale price by the percentage of the original cost.

Percent of original cost = 100% - 52% = 48 %

158.40 / 0.48 = 330.00

The original price was $330.00

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 135 of a gallon of gas to go 1 mile. How much gas does it use to go 100 miles?

Answers

2.86 gallons

Step-by-step explanation:

If 1/35 gallon of gas = 1 mile

To travel 100 miles,

1/35 * 100

= 0.0286 * 100

= 2.86 gallons

Therefore, the car needs 2.86 gallons of gas to travel 100 miles

2.86 gallons is the answer

Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes.
If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce bags? Explain.

Answers

Answer:

yes if each machine makes popcorn for 10 minutes, there be enough popcorn for eight 9-ounce bags

Step-by-step explanation:

yes because 12.74 x 3.3 = 42.075 and 18 x 2.5 = 45 and when you add those together you get 87. Also 8  9-ounce bags = 72 and that is less then what you have.

Answer:

Yes there will be enough popcorn for eight 9-ounce bags.

Step-by-step explanation:

" eight 9-ounce bags"

Basically

"72 ounces"

"12.75 ounces of popcorn in 3 minutes"

Basically

We need to find out how much popcorn we can make in "One Minute"

12.75÷3=4.25

Now we need to find out how much it can make in "Ten Minutes"

4.25×10=42.5

"18 ounces of popcorn in 4 minutes."

Basically:

We wanna find out how much it can make in "One Minute"

18÷4=4.5

"makes popcorn for 10 minutes"

Basically:

We need to find out how much popcorn it can make in "Ten Minutes"

4.5×10=45

Add (45) and (42.5)

45+42.5=87.5

So yes,there will be enough popcorn for eight 9-ounce bangs due to the fact A and B makes (87.5) ounces of popcorn and thats greater than (72) ounces.

Answer option C is correct.

y=x^2- x + 2, y = x + 5
Solve by substitution
I need the work shown please

Answers

Here you are . i think thais is the asnwer

Pls help me with this question only a few more questions left

Answers

Answer:

0.21

Step-by-step explanation:

7/33

You take the amount of yellow skittles and divide by the amount of skittles there

Answer:

=.21

7 divided by 33

You take the amount of yellow skittles and divide by the total amount of skittles.

WILL MARK BRAINLIEST what is the height of the seagull?

Answers

Answer:

Where is the area of the whole triangle tho-

Step-by-step explanation:

Nancy and Kevin collect coins. Nancy has x coins. Kevin has 4 coins fewer than three times the number of coins Nancy has. Write and simplify an expression for the total number of coins
Nancy and Kevin have.

Answers

Answer :x+3x-4= total # of coins

4x-4= total # of coins

Step-by-step explanation:

Solve the equation:

4=32b

b=_____

Answers

you’re going to subtract 32 from both sides
4/32=32b/32
4/32=b
Then you can simplify
b=1/8
Process of elmination
4=32b
4/32=b
8=b

Pls help its not that hard, im in 7th grade

Answers

i believe its .25 as the correct answee
A. .25 I think that’s right if I did the math right

ANSWER THESE EASY QUESTIONS WILL GIVE BRAINLY

Answers

Answer:

i dont know im only doing it for the points

Step-by-step explanation:

i cant see the rest of the pics

Need help please no one is helping
:(

Answers

For the first one multiply every number by 8.50 then put them in the chart so here is my chart/plot point
X. Y
4. 34
5. 42.5
6. 51
7. 59.5
And plot these for the plot thing I would do 30,35,40,45,50,55,60

a linear function contains the following points.
what are the slope and y-intercept of this function?

Answers

Answer:

B

Step-by-step explanation:

the slope is -3

the slope is -3 so it would be B

Plssss HELP MEEEEE ITS THE LAST QUESTION ITS LITERALLY PAST DUEEE

(And the answer I put in was me pls tell me it’s correct or not)

Answers

Answer:

Betty will need 34 jars in total to hold all the pears and apples.

Step-by-step explanation:

Betty will need 13 jars for the pears, using division.

104/8 = 13

Same method for the apples.

126/6 = 21

21 + 13 = 34

Total = 34

I need help on all three please help thank you

Answers

w= -15.4, b= 5.6, g= 1/4
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