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
lara31 [8.8K]
3 years ago
5

9 + 10 = 21 PLSSSSSSSSSSSSS

Mathematics
2 answers:
Natalija [7]3 years ago
7 0

mhmm I totally just brainfarted

stellarik [79]3 years ago
6 0

Answer:

9 + 10 +x= 21

x=21-19

x=2

add 2 in left hand side to get 21

You might be interested in
Maggie's brother is 10 years younger than twice her age. The sum of their ages is 32.
mixas84 [53]

Answer:22

Step-by-step explanation:

5 0
2 years ago
The triangle inequality
klemol [59]
The answer is the first choice: 7, 15, 20.
When you want to know what three numbers can make up a triangle. All you have to do is take the first two numbers and add them up. If the sum is larger than the third number, it can form a triangle. If the sum of the first two numbers are smaller than the third number, it cannot form a triangle.
Hope this helped
3 0
3 years ago
HELP 20 POINTS PLZ RAHHHH
schepotkina [342]

Answer:

answer is option D : 42m+12

7 0
3 years ago
Simplify this expression, you are y years old. Your sister is 3 years older than you. Your uncle is 4 times older than your sist
uysha [10]

Answer:The simplified expression that represents the uncle's age is

4y + 12

Step-by-step explanation:

Let y represent your age.

Your sister is 3 years older than you. This means that your sister's age is y + 3

Your uncle is 4 times older than your sister. It means that the age of your uncle would be

4(y + 3)

The simplified expression that represents your uncle's age would be

4y + 12

8 0
3 years ago
JoAnn works in a publicity office at the state university. She is paid
sleet_krkn [62]
JoAnn works 43 hrs week.
3 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify -7x - (15y) + 3x - 2y
    14·1 answer
  • What is the simplified fraction for 1 1/2 times 5 5/6?
    10·1 answer
  • URGENT!!!! Set up proportions for each variable and solve!!! I have a test tomorrow and have no clue how to do proportions!
    5·1 answer
  • 7.RP.A.1 3. If 1 1/2 cups of something fills 2/3 of a container, how many cups fill the container? ​
    15·1 answer
  • 3 - 3 × 6 + 2 = what
    11·1 answer
  • 3. What is the balance as a result of having a credit of $104 and a debit of $57?
    8·1 answer
  • If a tree in a 1 in. : 2 ft. scale drawing is 10 inches tall, how tall is the actual tree?
    9·1 answer
  • Find the LCM of 220,440,660 by common division method​
    15·1 answer
  • Please help a girl out!! really confused
    10·1 answer
  • Geometry TEST #5 Can you use the SAS Postulate, the AAS Theorem, or both to prove the triangles congruent? x a. SAS only b. AAS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!