Mathematics Middle School

Solve for x: 15x + 121 = 256

Solve the inequality: 4x + 8 > 2x - 10

Solve for x: 5x + 7 = 42

Answers

Answer 1

Answer:

Step-by-step explanation:

15x + 121 = 256 the answer is x = 9

4x + 8 > 2x - 10 the answer is x > -9

5x + 7 = 42 the answer is x = 7

Answer 2

Answer:

x=9, x>-9, x=7

Step-by-step explanation:

[tex]15x + 121 = 256 \\ 15x = 256 - 121 \\ 15x = 135 \\ \frac{15x}{15} = \frac{135}{15} \\ x = 9[/tex]

[tex]4x + 8 > 2x - 10 \\ 4x - 2x > - 10 - 8 \\ 2x = - 18 \\ \frac{2x}{2} = \frac{ - 18}{2} \\ x > - 9[/tex]

[tex]5x + 7 = 42 \\ 5x = 42 - 7 \\ 5x = 35 \\ \frac{5x}{5} = \frac{35}{5} \\ x = 7[/tex]

Related Questions

help me please thanks!

Answers

the answer to this question is b (0,6)

Answer:

D

Step-by-step explanation:

We are dealing with system of equations and can use graphing, elimination, or substitution. However, the equation is set up in a way such that it will be easier to use elimination. You can add the two equations and in doing so you will see the x and -x cancel out. The remaining equation is 2y = 0. So, y = 0. Substitute that into one of the equations and you get that x = 3. Therefore your answer is "D".

please answer this correctly!

Answers

Answer:

1 1/4

Step-by-step explanation:

Answer:

1 1/4

2

2.2

The answers are in order as the questions.

How many minutes from when they started their journey did it take Kathryn and Vanessa to reach the ocean floor at

-36000 feet? minutes
Submit and Explain NO LINKS PLZ!

Answers

Vanessa and kathryn take 240 minutes to reach -36000 ft

Answer:

nevermind have a good day or night

What is the quotient if 2305÷294

Answers

Answer:

7.840136054421769

Step-by-step explanation:

**I thought I had it but everytime I plug the number in, it's wrong. Someone help!**

Answers

Answer:

3x+8=41

Step-by-step explanation:

Subract by 8 (8-8) (41-8)

3x=33

Divide by 3 on both sides

x=11

Answer:

A : 3x + 8 = 41

B : x = 11

Step-by-step explanation:

For this problem, there are two parts, so I am going to explain A first. So we know that the final cost is going to equal to 41. There are two costs, one of which we know and one of which we don't. The cost we do know of is the special group fee, which is 8. Now we know something plus 8 is going to equal to 41. The second cost is the cost per person, but we don't know how many people there are, so what we do instead is say the is of people x. If it costs the 3 dollars per person, the second cost is 3x. Now we know that

3x + 8 = 41, and that's your answer to part A. For part B, all we have to do is solve it. To do that, the first thing we are going to do is isolate the variable by subtracting 8 form both sides. Now we end up with 3x = 33. To finish solving, we just have to divide both sides by three so we end up with x. Once we do that, we get x = 11, and that's your answer to B. I hope this was helpful and you learned something form this.

THERE IS A LINK GOING AROUND i did some recerch IT IS A bad thing(do your recerch and see what i mean) ANYWAYS I CLICKED ON IT, ANY ADVISE!!!!!!!!!!!!!!!!!!!!!1

Answers

YoU sHoUlD pRoBaBlY cHiLl aNd ThInK aBoUt A uNiCoRn eAtInG a TrUcKlOaD oF cHeEzE aT cHiLi’S.

plz awnser i have ixl and ive already crack my screen so help no explanation just awnsrr

Answers

Answer:

[tex]\frac{c}{6}=2.75[/tex]

Step-by-step explanation:

if each person payed $2.75, and there are 6 people, this means we will multiply the two values : the number of people by the amount each person.

This can be demonstrated by saying c = total cost

6 *2.75 = c

this equation says, "a total of 6 people payed 2.75 each, this is what the total cost is (c)"

in other words

c/6 = 2.75

this equation says, "c is the total cost, to find out what each 6 people will pay, in order for the total cost to be payed equally, it will have to be 2.75"

Triangle ABC is shown. What is the area of triangle ABC in square centimeters?

Answers

Answer : 12cm^2

Step-by-step explanation:

A = bh/2

A = 8 * 3 /2

A = 24/2

A = 12 cm^2

The answer is 12cm^2 hope this helps

Help me answer both pleaseeeee

Answers

B) I took the quiz and got a 100%

The number of gift baskets Nikki can make varies directly with the amount of time she spends making the baskets. She can make 6 baskets in 1/2 hour. How many baskets can Nikki make in 4 hours?(PLS HELP, AND RIGHT ANSWERS PLZ TRY)

Answers

Answer:

48

Step-by-step explanation:

6= 30 minutes

12= 1 hour

24= 2 hours

36= 3 hours

48= 4 hours

48 have a great day bud

Mia’s dog weighs 32.6 pounds. Lettie’s dog weighs 3.8 times as much as Mia’s dog.
What does Lettie’s dog weigh in pounds?
If given links i will report.

Answers

Answer:

123.88 pounds

Step-by-step explanation:

Given:

Mia's dog weighs 32.6 pounds

Lettie's dog weighs 32.6 · 3.8

So...

32.6 · 3.8 = 123.88

What does the dot mean between the numbers? It is basically a multiplication sign, instead of putting (x) because (x) can look like a variable.

Hope this helped, have a great day sunshine :)

Letties dog is 123.88
32.6 x 3.8= 123.88

what is 1\10 x 1.2 >>>>>>>>>>>>>>>>>>>>>>>>

Answers

the answer is 0.12 !!!

Answer: 0.12

Step-by-step explanation: 1/10 x 1.2 = 0.12

These three points form a horizontal line : (-3.5,4) , (0,4) , and (6.2, 4) .Name two additional points that fall on this line.

Answers

Answer:

(-6,4) and (10,4)

Step-by-step explanation:

just keep y

Factor the following expression using the GCF: 14xy + 8yz.

y(14 x + 8 z)
2 xy(7 + 4 z)
2 y(7 x + 4 z)
2(7 xy + 4 yz)

Answers

the answer is 2y(7x+4z)
The answer will be 2y(7x+4z)

My question is (6/11+2/11)x 3/7 brainly Squad

Answers

If it’s simplified, multiplied, etc. it would be 24/77

Answer:

24/77 Decimal form 0.311688

Step-by-step explanation:

please help i have been struggling with this for hours!!!!!!!!!!

Answers

Answer:

I mean I think it's not, think about it this way...

Because the government gives every person a social security number, every single person who's born gets one.

Because it's literally saying the exact same thing.

Honestly, idek, but I think its not lol

Answer:

Not a function.

Step-by-step explanation:

Hi there,

Since the government has no control over how many people are born, it has no correlation with the government giving people social security numbers. In other words, just because the government provides a social security number doesn't mean every person is given one at birth.

I am quite certain this answer is correct. Please let me know if there is another explanation for this problem.

Cheers.

Antonia bought a set of dishes, a towel, and a candle at a housewares store. The set of dishes cost $35.73, the towel cost $21.43, and the candle cost $9.96 before any coupons or discounts.

She used a $0.50-off coupon on the candle, a $2.75-off coupon on the towel, and the set of dishes was on sale for 10% off the regular price. Which of the following best describes the amounts that Antonia saved?
A.
She saved the same percentage on the towel and the set of dishes.

B.
She saved the greatest percentage on the towel.

C.
She saved the greatest percentage on the set of dishes.

D.
She saved the greatest percentage on the candle.

Answers

the answer to this question is B
The answer is B I’m pretty sure

URGENTTTTT

Find the area of the composite figure. Don't forget to use the word "square" and then the given units in your answer.

Answers

i’m truly so sorry. i was i knew the answer to this question, but unfortunately i don’t. good luck. but they usually don’t give the right answers and there’s always trolls so i’d recommend to get another app
I think it’s 10 but I could be wrong. I’m not too sure

Estimate the area of the parallelogram

60 sq. units CAN SOMEONE PLZ HELP ASAP
68 sq. units
72 sq. units
84 sq.units

Answers

The answer would be 72 sq. units

Explanation: We can find the length of one side by using the pythagorean theorem (a^2 + b^2 = c^2). If we go to the center of the parallelogram, you can count the units to each corner. Since the length from the center to a corner is 6, and the length from the center to another corner 90 degrees away from the other one is 6, we can plug those in for “a” and “b”. So, 6^2 + 6^2 = c^2... 36+36=c^2... 72=c^2. Since “c” = the length of one side, and this parallelogram looks like a square, we can estimate that the area of the parallelogram is c^2 or 72 sq inches. I’m sorry if this was explained poorly! :)

Really need help rn...........................

Answers

answer
5,2
step by step..

Clare is 5 years older than her cousin.

How old would Clare be if her cousin is:

10 years old?

2 years old?

[tex]x[/tex] years old?

Clare is 12 years old. How old is Clare’s cousin?
Diego has 3 times as many comic books as Han.

How many comic books does Diego have if Han has:

6 comic books?

[tex]n[/tex]books?

Diego has 27 comic books. How many comic books does Han have?
Two fifths of the vegetables in Priya’s garden are tomatoes.

How many tomatoes are there if Priya’s garden has:

20 vegetables?

[tex]x[/tex] vegetables?

Priya’s garden has 6 tomatoes. How many total vegetables are there?
A school paid $31.25 for each calculator.

If the school bought calculators, how much did they pay?
The school spent $500 on calculators. How many did the school buy?

Answers

Answer:

15, 7, ?, 7 .       18,3

Step-by-step explanation:

the first question just add five onto the original number to get your answer and for the second question you the original number by three to get the answer and for the very last question you divide twenty-seven by three and you got your answer.

If her cousin was 10, then Clare would be 15.
If her cousin was 2, then Clare would be 7.
If her cousin was x years old, then Clare would be x+5.
If Clare is 12 then her cousin is 7.

If Han has 6 comic books then Diego would have 18.
If Han has n books then Diego would have 3n (n multipled by 3).
If Diego has 27 comic books then Han would have 9

If Priya’s garden had 20 vegetables then 8 vegetables would be tomatos.
If Priya’s garden had x amount of vegetables then (2/5)x (two-fifths times x) vegetables would be tomatos.
If Priya’s garden has 6 tomatoes then there would be 15 vegetables total.

If a school bought calculators, they would spend $31.25 per calculator.
They would of bought 16 calculators if they spent $500 on calculators.

I need help with question 1 .

Answers

Answer:The answer is C

Answer:

The answer is 8!

Step-by-step explanation:

since in every turn, he gets up to 8 candies!

PLEASE HELP LOTS OF POINTS!!!! (PICTURE UPLOADED)

Answers

Answer:

Look at the image

Step-by-step explanation:

18 + 4(m - 3) + 4m

18 + 4m - 12 + 4m

8m + 18 - 12

8m + 6

Tell whether the angles are vertical or adjacent and solve for x. Solve 11 and 12 for 20 points and brainest.

Answers

Answer:

11) x = 45

12) x = 30

Step-by-step explanation:

11)

3x + x = 180

4x = 180

x = 45

12)

4x = 5x - 30

4x - 5x = -30

-x = -30

x = 30

Find the area of the triangle.



The area is______
square feet.

Answers

The area is 165 square feet.
The formula for an area of a triangle is 1/2 bh or bh/2
15 ft (the height) • 22 ft (the base) = 330 ft
330 ft/2 or 1/2 (330) =
165 sq ft

Which of the following best describes the relationship between the variables on the scatter plot below?

A. positive correlation

B. positive and negative correlation

C. no correlation

D. negative correlation

Answers

The answer is D- negative correlation

y= 1/2 x - 4 What is the rise?
A) 1
B) 2
C) -4

Answers

A.
in y = mx+b form, the m is the slope and the b is the y intercept. the slope is always rise over run, so the rise would be 1, the run would be 2 and the y-int would be -4
Answer:

C -4

Instruction:

X=0
1/2*0= 0
-4 is left

Please Help me and Thank you

Answers

Answer:

Step-by-step explanation:

The answer is C

irrational because it has a sign of square root

A big bug at smaller bugs in 4 days. Each day it ate 5 more bugs than it did on the previous day.——————————————
How many small bugs did the bug eat on ...

The first day?________
The fourth day?_______

Answers

When you add 20 -9 it equal 100199393

please help i’m at 24% now i need to get to 82%!! i’ll mark and brainly please be serious or i will take my points back.
brainly.com/app/profile/19154158/answers

Answers

Answer:

300

Step-by-step explanation:

The upper quartile ends at 300

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