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
fomenos
3 years ago
7

How do you solve:6r+7=13+7r

Mathematics
2 answers:
Sergio [31]3 years ago
7 0
You need to get the r by itself on one side, with the constants (numbers without the r) on the other side.

6r+7=13+7r\\6r-7r+7=13+7r-7r\\-r+7=13\\-r+7-7=13-7\\-r=6\\-r/-1=6/-1\\r=-6
densk [106]3 years ago
5 0
6r+7=13+7r \\ -6r\ \ \ \ \ -6r \\ 7=13+r \\ -13\ \ -13 \\ -6=r
You might be interested in
A can of soup contains 2 servings. Each serving has 130 calories in it. How many calories are there in the whole can?
Allisa [31]
There are 260 calories in the whole can.
to get this you multiply the calories in one serving by the amount of total servings, in this case 2.
6 0
3 years ago
Read 2 more answers
Mr. Noel borrowed money from his cousin at a rate of 10% simple interest. After 1 year, $440
Alborosie

Answer:

<h2>$400</h2>

Step-by-step explanation:

Using the formula for calculating the simple interest expressed as;

Simple Interest = Principal * rate * time/100

Note that the principal is the amount he originally borrowed

I = PRT/100 ............ 1

Amount paid off A = Principal+Interest

A = P+I ............ 2

From equation 2; I = A-P......... 3

Substitute equation 3 into 1;

A-P = PRT/100

Given A = $440, R = 10%, Time = 1year

Substitute the given parameters into the resulting equation;

440 - P = P*10*1/100

440-P = 10P/100

440-P = 0.1P

440 = 0.1P+P

440 = 1.1P

Divide through by 1.1;

1.1P/1.1 = 440/1.1

P = $400

<em>Hence the amount Mr Noel originally borrow is $400</em>

5 0
3 years ago
What is the approximate area of the pizza
Dovator [93]
If you have several different sized pizzas, you can compare their areas. So the area of a pizza is the length of the crust (circumference) divided by two times the distance from the edge to the middle (radius). Mathematicians use a special number called pi to calculate the circumference of a circle.
5 0
3 years ago
The area of a rectangle is represented by x^2-5c-14. What are the dimensions?
jekas [21]
The dimensions are factors of the expression 
... you multiply them together to get the area 

the factors are ... (x - 7) & (x + 2)
5 0
3 years ago
HELP ME PLEASE IF YOU DO I WILK GIVE YOU POINTS <br><br> THANK YOU SO MUCH
blondinia [14]

Answer:

1. 54 2. 2$

Step-by-step explanation:

1. total students= 331

n.o of buses=6

now,

total no of students travelling through bus,

=331-7

=324

now,

324÷6

=54

2.

total money=24$

remaining money= 10$

spent money on pencil= 24-10$

= 14$

now,

7 pencils cost= 14$

1 pencil cost= 14÷7$

=2$

6 0
2 years ago
Other questions:
  • The length of the shorter base in an isosceles trapezoid is 4 in, its altitude is 5 in, and the measure of one of its obtuse ang
    6·1 answer
  • Which is the best estimate for the height of a tall tree?
    7·1 answer
  • Help me please thank you
    11·1 answer
  • WILL GIVE 20 POINTS TO THE BRAINLIEST ANSWER
    10·1 answer
  • 3√3 AS A WHOLE RADICAL
    10·1 answer
  • Solve each equation.<br> 1) X- 17 = -32
    15·1 answer
  • Kaylie had $1250 in her savings account. She withdrew $82 each month for 8 months in order to pay for a summer vacation. How muc
    12·2 answers
  • What is the point-slope form of a line with slope 3 that contains the point (2,1)​
    5·1 answer
  • Which is equivalents to 9/8​
    10·2 answers
  • What is the answer for y -1/2 = 3/8y
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!