MATHEMATICS MIDDLE SCHOOL

3 over 4 n minus 18 equals 1 over 4 n minus 4

Solve

Answers

Answer 1
Answer: n=28. Step 1: Subtract 1/4n from both sides.34n−18−14n=14n−4−14n12n−18=−4Step 2: Add 18 to both sides.12n−18+18=−4+1812n=14Step 3: Multiply both sides by 2.2*(12n)=(2)*(14)
Answer 2
Answer: 3/4n - 18 = 1/4n - 4
3/4n = 1/4n - 4 + 18
3/4n - 1/4n = -4 + 18
2/4n = 14
1/2n = 14
n = 14 × 2
n = 28

Related Questions

32 out of 40 as a percentage
0.8 divided by 0.64.
What is the sign of the product?(0.5)(–0.5)(3.2)(–7.9)(–2.4)
Evaluate.6{5(3-9)-1}+2 / 7(8-2)+4
Your answer is incorrect.There are 90students in a speech contest. Yesterday, 2/5of them gave their speeches. Today, 2/3of the remaining students gave their speeches. How many students still haven't given their speeches?

The area of the base of a prism is 60mm. The perimeter of the base is 40mm. The height of the prism is 8mm. What is the surface area of the prism?A. 168mm
B. 380mm
C. 440mm
D. 560mm

Answers

B) 380mm

Surface area = Perimeter of the base x height + the area of the base
Surface area = 40 x 8 + 60
Surface area = 320 + 60
Surface area = 380 mm

Aldo drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 420 miles?

Answers

distance/fuel is constant
200/9=420/x
find x
times 9x both sides
200x=3780
divide both sides by 200
x=18.9
18.9 gallons

Hello !! 1 question : one serving of pasta contains 210 calories.what percentage of a 2000-calorie diet is contained in one serving of paste ?2 question : a backpack is normally $64.99 but is discounted to $45.49. what percent of the original does maria pay ?
level of question : 7th grade math not honors 7th grade math
subject : math
note: answer BOTH questions or i will report note : show complete work or i will report
THANK U TO THE PEOPLE WHO ANSWER !!

Answers

1) 210/2000=10.5%
2) What percentage of 64.99 is 45.49?
45.49/64.99=.699
.699=69.9%

Kaitlyn missed 15% of the 20 questions on her science lab.How many questions did Kaitlyn answer correctly?

Answers

she answered 17 questions correctly.
20* .15=3
she missed 3 questions.
20-3=17

Whats 23.5 in expanded form

Answers

twenty+three+five tenths your welcome
the answer is 20+3+.5

Antonio and Bendu want to earn money this summer by setting up a lemonade stand. Thinking about last summer's sales, they realize that they sold an average of 200 cups per day when they charged $1.00 per cup. Other vendors with similar sales have noted that for every $.25 increase in price, they sold 20 fewer cups. Using this information, what should they charge to maximize their income? And what is the function and plot points of this problem? GUYS PLEASE HELP ME OUT ON THIS IM DESPERATE AND USED 50 POINTS FOR THIS. AND DON'T TRY AND COPY AND PASTE THE QUESTION, BELIEVE ME, I'VE TRIED.

Answers

Answer:

1.) From the information given, they should charge $1.25 per cup to maximize their income

2.) Function y = -1.25x + 200

3.) (200, 200) and (180, 225)

Step-by-step explanation:

Let assume that they sold an average of 200 cups per day when they charged $1.00 per cup. Then they will realise $1.00 × 200 = $200 per day

If they increase the price by $ 0.25, they sold 20 fewer cups. That is, they will realise $1.25 × 180 = $225

Increase in profit = 225 - 200 = $25

From the information given above, they should charge $1.25 per cup to maximize their income

If income = y and number of cup = x

Slope = 25/-20 = - 1.25

Function y = -1.25x + 200

The plot point are:

(200, 200) and (180, 225)
Other Questions
Translate the phrase into an algebraic expression.5 less than w
Find the side length of a cube when the volume is 216 ft cubed. A) 72 ft B) 6 ft C) 108 ft D) 219 ft
AB ___ ACChoose the relationship symbol that makes the statement true.<=>
miguel is earning extra money by painting houses. he charges a $200 dollar fee plus $12 per can of paint needed to complete the job. Write and use an equation to find how many cans of paint he needs for a $260 job