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
lana [24]
3 years ago
8

R/3+2=21 solve for r

Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0

Answer:

r=63

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    r/3-(21)=0             r

Simplify   —

           3

r    

 — -  21  = 0

 3     2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :

         21     21 • 3

   21 =  ——  =  ——————

         1        3  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

You might be interested in
Which expression represents the phrase the sum of twice a number and 7
bixtya [17]

Answer:

2n+7

Step-by-step explanation:

3 0
3 years ago
The formula for the resistance, R, of a conductor with voltage, V, and current , I , is R= V/I. Solve for V.
borishaifa [10]

Answer:

T+V/I

Step-by-step explanation:

multiply both sides by I to get rid of fractions ti=V

7 0
3 years ago
Read 2 more answers
Simplify your answer 2/8 plus 2/3
Ronch [10]
11/12

simplificado
de nada
7 0
3 years ago
Read 2 more answers
Eleven percent of the pens made by Apex are defective.
sergiy2304 [10]
Let A be the event 'made by Apex and defective':
P(A) = 0.67 x 0.11 = 0.0737
Let B be the event 'made by B-ink and defective':
P(B) = 0.33 x 0.06 = 0.0198
Let C be the event 'made by Apex or B-ink and defective':
P(C) = P(A) + P(B) = 0.0737 + 0.0198 = 0.0935
P(defective and made by Apex) = 0.0737/0.0935 = 0.788
The answer is 0.788 or 78.8%.


3 0
3 years ago
How to solve 11×11-6×17+4
almond37 [142]

use the order of operations for this equation.

multiplication comes first.

11(11) - 6(17) + 4

121 - 102 + 4

for addition and subtraction, order doesn’t matter.

121 - 102 = 19

19 + 4 = 23

answer = 23

8 0
3 years ago
Other questions:
  • Jared buys 2.4 pounds of broccoli for $3.24. Which epuation could Jared use to find c, the cost of each pound of broccoli
    11·1 answer
  • Find the measures of all four angles if m∠2 − m∠1=30°
    5·1 answer
  • a cylindrical bucket has a radius of 6 inches and a height of 18 inches. What is the minimum number of buckets of water needed t
    8·1 answer
  • -2[4-(3b+2)]=5-2(3b+6)
    5·1 answer
  • What is 85/95 in sipelist form
    15·1 answer
  • Is the constant of proportionally in gallons per minute the same for every row? What does this say about the relationship of the
    8·1 answer
  • 4 teachers share 3 gallons of paint. How much paint does each teacher get?
    8·2 answers
  • Please answer in number order, no need to explain just answer
    8·1 answer
  • Which set of absolute values is compared correctly? A. |-10| |-10| > |-12| > |17| C. |10| > |-15| > |-5| > |2| D.
    9·1 answer
  • Pls help this is due soon!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!