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
lisov135 [29]
2 years ago
9

In the equation 2r - 7 = 15, what value of r makes this equation true?

Mathematics
1 answer:
liq [111]2 years ago
4 0

Answer:

r = 11 makes 2r - 7 = 15 true.

Step-by-step explanation:

2r - 7 = 15

Add 7 to both sides.

2r = 22

Divide by 2.

r = 11

Proof:

2r - 7 = 15

2(11) - 7 = 15

22 - 7 = 15

15 = 15

You might be interested in
Chris wants to paint the ceiling of his restaurant. The ceiling is in the shape of a square. Its side lengths are 55 feet. Suppo
d1i1m1o1n [39]

Answer:

11 cans

Step-by-step explanation:

Since you know that the ceiling is in the shape of a square and each side is 55ft, you can multiply 55x55 to get 3075, which is divided by 275 due to the amount of paint in a can. It would result in 11 cans, but if it were a decimal like 11.3, then you would need 12 cans since you can't split a can.

6 0
3 years ago
Read 2 more answers
V170 is between what two whole numbers?
timama [110]
100 and 70 is the two while numbers I think that’s what you’re asking
4 0
3 years ago
1/x + 1/3x =6 how do you solve this equation for x
Elodia [21]

Answer:

x = 2/9 (or = 0.222)

Step-by-step explanation:

1/x + 1/(3x) =6  (multiply both sides by 3x)

(1/x) (3x)  + [1/(3x)](3x) =6 (3x)

3 + 1 = 18x

4 = 18x

x = 4/18

x = 2/9 (or = 0.222)

3 0
3 years ago
What is the ratio of people who prefer pistachio to the people who prefer vanilla?
Brrunno [24]

Answer:

3/2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the length x and y please
Artemon [7]

Answer:

2

Step-by-step explanation:

To find the x-intercept using the straight-line equation, substitute y=0 and solve for x. To find the y-intercept, substitute x=0 and solve for y.

7 0
2 years ago
Other questions:
  • ANSWER ASAP PLEASE. How many lines of symmetry does this figure have?
    6·1 answer
  • What does x equal?????
    7·1 answer
  • dani says she is thinking of a secret number. as a clue she says the number is the least whole number that had three different p
    9·1 answer
  • Use Gauss's approach to find the sum for 1+2+3+4+...+999
    10·2 answers
  • Veronica is framing a rectangular picture. She uses 72 inches of framing. The picture is 20 inches long. What is the width of th
    5·1 answer
  • I need help. Please anyone help :D
    8·1 answer
  • What is the algebra mat below models the equation x- 2 =4​
    6·2 answers
  • Plss help me with my question I'll give you more points​
    12·2 answers
  • A carpet cleaning company charges $6 per hour with a flat $10 service charge.
    6·1 answer
  • If one lady make 50 roti in 60 mins then how 3 ladies will make how many roties in 60 mins
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!