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
Phoenix [80]
2 years ago
13

Write an equation and solve for x

Mathematics
1 answer:
user100 [1]2 years ago
8 0
3x+12+x=90, simplify (4x+12=90), subtract both sides by 12 (4x=78), divide both sides by 4 (39/7)
You might be interested in
Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -36 and 2304, respectively.
Lorico [155]

Answer:

I think it's B.)

Step-by-step explanation:

3 0
2 years ago
Help me solve this please
Anna71 [15]
27+ 2/5×-1/2 = 27 - 1/5
(135 - 1)/5 = 134 /5 <——answer
8 0
2 years ago
Find the value of the variable
Neporo4naja [7]

Answer:

x=6

Step-by-step explanation:

I would look at this triangle and notice that x can be solved by setting up a ratio.

I generally put the short side of the triangle on the top and the long side on the bottom

4/x = x/9

You then cross multiply to get 36=x^2, or +-6=x

A length of a triangle cannot be negative, so we are left with the answer x=6

8 0
3 years ago
Can someone please help me???<br> I forgot how to do this :(
schepotkina [342]

Answer:

plot it then see if the line is straight or not

7 0
3 years ago
Someone please help me I need these answers to be prepared for my test :(
algol [13]
To do these problems, plug in a couple of values into the equations, and see the general shape of the graph. To ensure you were right, check them on an online graphing calculator. I highly recommend Desmos Graphing Calculator. Cheers!
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help please I will mark brainliest!
    8·2 answers
  • kaya has $25 left over after the football game she spent $17 for her ticket. She then bought a hat for $11 how much money did ka
    8·1 answer
  • What is the ratio of 6/4 in simplest form??
    11·1 answer
  • A is C's son. C and A are sisters. Z is Q's mother. P is son of Z. Then
    10·1 answer
  • Instructions: Problem 3 ! Find the missing angle in the image below. Do not include spaces in your answers
    5·1 answer
  • X^2+x-5=0nsolve using the quadratic formula
    9·1 answer
  • PLS HELP ME
    10·1 answer
  • If AB = cd and cd = ef, then Ab =ef
    11·1 answer
  • The Furnace Creek Airport in Death Valley, California, has an elevation of 64 meters below sea level. The lowest point in New Or
    7·1 answer
  • the formula for the circumference (c) of a circle is c= 2πr. calculate c if r=0.8695 mm, keeping the highest possible number of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!