1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hodyreva [135]
3 years ago
13

Write and solve an equation.

Mathematics
1 answer:
monitta3 years ago
3 0

Answer:

12

Step-by-step explanation:

84-54=30

30/2.5=12

You might be interested in
Find the area of the rhombus. 
Inessa [10]

A=24


Find the area by multiplying both diagonals and dividing them by 2. Like so: And you might be wondering how to do that. By using the pythagorean theorem and some simple addition, you could get the answer. One diagonal is 8 and the other is 6....so, 8x6=48....48/2=24


Please let me know if you have any other questions!


3 0
3 years ago
Read 2 more answers
A computer training institute has 625 students that are paying a course fee of $400. Their research shows that for every $20 red
Anastasy [175]
1.
If no changes are made, the school has a revenue of :

625*400$/student=250,000$

2.
Assume that the school decides to reduce n*20$.

This means that there will be an increase of 50n students.

Thus there are 625 + 50n students, each paying 400-20n dollars.

The revenue is: 

(625 + 50n)*(400-20n)=12.5(50+n)*20(20-n)=250(n+50)(20-n)

3.

check the options that we have, 

a fee of $380 means that n=1, thus 

250(n+50)(20-n)=250(1+50)(20-1)=242,250   ($)


a fee of $320 means that n=4, thus

 250(n+50)(20-n)=250(4+50)(20-4)=216,000    ($)


the other options cannot be considered since neither 400-275, nor 400-325 are multiples of 20.

Conclusion, neither of the possible choices should be applied, since they will reduce the revenue.
6 0
4 years ago
How is (y=15x) a proportional relationship?
Elina [12.6K]

Answer:

because y and x are equivalent and equal 15

Step-by-step explanation:

3 0
3 years ago
Jack and Diane participated in a weight loss program jack lost 6 pounds per Month for seven months Diane lost 4 pounds per month
Korolek [52]

Answer:

Step-by-step explanation:

your welcome

5 0
2 years ago
What is the length of RM or RN
Makovka662 [10]
RM is 8 and RN is 12
6 0
4 years ago
Read 2 more answers
Other questions:
  • What statements must be true of an equation before you can use quadratic formula?
    5·1 answer
  • What is the value of x? enter your answer in the box.
    9·1 answer
  • Which number has the same value as 20 tens
    12·1 answer
  • Explain in words the steps to solve the following equation: 2x - 4 = 6 giving brainlyest!
    7·1 answer
  • When the x-coordinate is 4, which function has the greater value: y = 3x2 or y = 3x?
    9·1 answer
  • Find the value of each trigonometric ratio
    9·1 answer
  • Find the solution for this system of equations. 2x − 3y = 2 x = 6y − 5<br><br> x =<br> y =
    5·2 answers
  • Is (3,-1) a solution of this system: y=2-x 3-2y=2x
    12·1 answer
  • Mini muffins cost $3.00 per dozen.
    6·2 answers
  • What is $0.75 of $16.40​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!