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
sveticcg [70]
3 years ago
15

12r - 18 = 13r + 18 please help

Mathematics
2 answers:
Tomtit [17]3 years ago
5 0
12r - 18 = 13r + 18
13r - 12r - 18 = 13r + 18 - 13r
-1r - 18 + 18 = 18 + 18
-r = 36
36/-1
r= -36
Ugo [173]3 years ago
3 0
I am assuming you want to find r. r = -36
You might be interested in
Which expression is equivalent to 10√5<br>A. √500<br>B.√105<br>C.√50<br>D.√15
julsineya [31]
50 is the answer to this question
3 0
3 years ago
Jesselyn made 6 muffins. She used 3/8 teaspoon of baking powder for each muffin. How much baking powder did Jesselyn use for all
bezimeni [28]

Answer:

C

Step-by-step explanation:

Multiply the number of muffins by how much baking powder is in each muffin. That's read as 6/1 × 3/8 which equals 18/8.

6 0
2 years ago
7y means
olga55 [171]
Answer:

C

Explanation:

When a number is connected to a variable, (letter) you are multiplying them.
7 0
3 years ago
Choose the ratios for sin A and cos A.
Irina18 [472]

Answer: D


Step-by-step explanation: By using SOH for sin A, 'S' being sin, 'O' being opposite side of angle A and 'H' being the hypotenuse which is the longest part of the triangle you would find that 15 is opposite from Sin A and 17 the hypotenuse, 15/17.

For cos A you would use CAH, C= cos, A which is the adjacent of the triangle located next to angel A which is 8, and H= hypotenuse (also note that the hypotenuse never changes even if the angle may be different) CAH would be cos A = 8/17


7 0
3 years ago
Carson purchased supplies for his computer for $64. The sales tax was $4.16. He gave the salesperson $80. How much change did he
krek1111 [17]
To work this out you need to do 80 - 64 - 4.16 = 11.48

he received $11.48 change
3 0
3 years ago
Other questions:
  • On Fridays at the ballpark, a cup of soda costs $3, and each refill costs $0.60. If x represents the number of refills, which of
    14·2 answers
  • You and your friends go out to eat at your local restaurant. Everything goes pretty well, but you do notice that the waitress fo
    9·2 answers
  • (e) Divide 55g in the ratio 3:2​
    7·1 answer
  • What is -24 - (-13)? Please show your work.
    10·2 answers
  • Emily has 5 subway sandwiches that are equal in size. Emily will share the sandwiches equally among herself and 7 friends. What
    9·2 answers
  • How do I determine the range. ​
    9·1 answer
  • A line passes through the origin and has a slope of 4. What is the equation of the line that is parallel to the first line and p
    9·1 answer
  • Does 5mm, 1mm, 10mm make a triangle
    14·1 answer
  • If x-25=11, what is the value x/6
    5·2 answers
  • Please help me no links or other things just the answerrrrrr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!