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
AleksAgata [21]
4 years ago
12

Twice a number, decreased by 9 is 12

Mathematics
2 answers:
DiKsa [7]4 years ago
8 0

Answer:

10.5

Step-by-step explanation:

2x-9=12

2x=12+9

2x=21

x=21/2

x=10.5

Serhud [2]4 years ago
7 0

Answer:

10.5

Step-by-step explanation:

You might be interested in
Three of the angles of a quadrilateral  are 90 , 156  and 28 . what is the size of the 4th angle?
anyanavicka [17]
The sum of the sides of a quadrilateral is equal to 360º.
x= 4th angle measurement 

We have the following equation:

90+156+28+x=360
x=360-90-156-28
x=86

Answer: the size of the 4th angle would be 86º. 
8 0
3 years ago
Read 2 more answers
A triangle with an area of 45.5 cm2 has a base
FromTheMoon [43]

If you know the base and area of the triangle, you can divide the base by 2, then divide that by the area to find the height

Step 1. 14 ÷ 2 = 7

Step 2. 45.5 ÷ 7 = 6.5

Height = 6.5 cm

3 0
3 years ago
Emergency plsssssssssssss answer this what is 0.43 rounded to the nearest hundredth
coldgirl [10]

Answer:

0.430

Step-by-step explanation:

7 0
3 years ago
What is the estimate of 95×17
rusak2 [61]
The estimate is 1,615
8 0
3 years ago
Read 2 more answers
What is 815.755round to the nearest hundredth
lianna [129]
815.755 is already rounded to the nearest hundredth so i'm guessing you meant hundred. if so the answer is 816
4 0
4 years ago
Other questions:
  • What is the x-intercept of the equation y=-5x+1,450?​
    6·2 answers
  • 10.5 feet by 16 feet what is the area of room
    14·1 answer
  • -2(k - 5) + 2k = 5k + 5​
    7·1 answer
  • I’m so confused with this!!!
    14·1 answer
  • Please assist me with these problems​
    10·2 answers
  • 2x^6 = y divided by 3
    12·1 answer
  • 2. Solve the equation - 4(8 + y) = 90.​
    15·2 answers
  • The coordinates of the points below represent the vertices of a rectangle.
    12·2 answers
  • A simple random sample of 85 is drawn from a normally distributed population, and the mean is found to be 146, with a standard d
    5·2 answers
  • The price of a train ticket from listen to cancel is normally do $146 however the Dre company is offering a special 55% of disco
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!