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
daser333 [38]
2 years ago
12

If 2x+1=5, then r=2.

Mathematics
1 answer:
astra-53 [7]2 years ago
3 0

Answer:

if x=2 (r) then 2x+1=5

Step-by-step explanation:

Considering an "if and if only" type of function then the answer is A. if x=2 then 2x+1=5

You might be interested in
[Image: 1 apple, 3 oranges for each of 5 steps on the slider]
Elina [12.6K]
For every 3 apples, there are 6 oranges
6 0
3 years ago
Factor completely 2x2 - 18.<br><br> Prime<br> 2(x2 - 9)<br> 2(x + 3)(x - 3)<br> 2(x + 3)(x + 3)
zhenek [66]
2 x^{2}  - 18= 2( x^{2} - 9)= 2(x + 3)(x - 3)
7 0
3 years ago
Read 2 more answers
The school band is putting on a concert. Eight students signed up to play the trumpet, 8 students signed up to play the flute, a
inessss [21]
The circle graph that can best display the data is called a pie chart. The pie chart shows the given data as part of a whole and indicates its percentage as well. In this case, the pie chart will be divided into three - those students who signed to play the trumpet, flute, and violin. 
4 0
3 years ago
Read 2 more answers
$12 per 45 minutes is how much per hour? (I will give brainliest to the first person that answers)
gogolik [260]

Answer:

16 per hour

Step-by-step explanation:

12/45         x/60 cross multiply

45x=720 divide by 45 from each side

x=16

8 0
2 years ago
Ratio of the number of students in art class to the number of students in gym class was 2:7, however art class is small, and gym
xenn [34]
Semester 1:

let the number of students in the art class be 2a, and the number of the students in the gym class be 7a. (check: the ratio is 2a:7a = 2:7)

so the total number of students is 9a.


semester 2:

the 9a students are go to the art class and gym class at a a ratio of 5: 4, 

so 5a students go to the art class, and 4a students go to the gym class.



<span>75 students are in art class in second semester means that 5a=75, 

so a=75/5=15.


In the 1st semester the number of students was: 

art class: 2a=2*15=30

gym class: 7a=7*15=105
</span>
7 0
3 years ago
Other questions:
  • Deviation is the difference between any value and the mean of the set
    15·1 answer
  • What is the missing number
    13·2 answers
  • What are the solutions to 6x^2-5x-4=0?​
    5·1 answer
  • What percent is 373 out of 8007
    13·1 answer
  • Suppose a deck of cards contains 13 cards:
    13·1 answer
  • HELP ASAP PLEASE <br> FIND THE VALUE OF X
    14·2 answers
  • PLEASE HELPP!!
    11·1 answer
  • Suppose Marcy's rectangular laptop measures 12 inches by 9 inches. Find the area of her
    9·2 answers
  • What is the sum of the measures of the interior angles of a regular pentagon?​
    11·1 answer
  • You and a friend go to the store and purchase 3 candy bars that cost $0.85 each and 2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!