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
frosja888 [35]
3 years ago
12

1/2 x + 3 = 15 what is the x

Mathematics
2 answers:
sergey [27]3 years ago
6 0

Answer:

x=24

Step-by-step explanation:

x/2+3=15

-3 both sides

x/2=15−3

15-3=12

x/2=12

12*2=24

x=24

bulgar [2K]3 years ago
6 0

Answer:

x=2/5=0.400

Step-by-step explanation:

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

                    1/2*x-(3/15)=0

Simplify 1/5

(1/2 * x - 1/5 = 0

Simplify 1/2

Find the Least Common Multiple

     The left denominator is :       2

     The right denominator is :       5

Least Common Multiple:

     10

Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

x * 5 - (2)/10 = 5x - 2/10

When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

5x-2/10 * 10 = 0 * 10

Now, on the left hand side, the  10  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  5x-2  = 0

Solve  :    5x-2 = 0

Add  2  to both sides of the equation :

                     5x = 2

Divide both sides of the equation by 5:

                   <em> x = 2/5 = 0.400</em>

<em></em>

<em>
hope this helps! -Quentin
</em>

You might be interested in
I need help and how do u do it
saul85 [17]
4 to the second power is 16 and 3 to the third power is 27 so 27-16=11. Four to the second power is basically 4x4 and three to the third power is 3x3x3
4 0
4 years ago
Alfredo's painting his storage shed. He won't paint the top or bottom of the shed so he needs to calculate the lateral surface a
slavikrds [6]

Answer:

He is not painting the bottom or top meaning that he will paint 4 sides total,   when there is a rectangular prism there are 6 sides and 3 pairs of 2 equal sides, so since there is a wall that is 9ft x 7 ft there is two of those, and since there is a wall that is 12 ft x 7 ft there are two of those as well. meaning that (7x9)·2=126 and (12x7)·2=168 when added we get 294. meaning that he needs to paint an area of 294 ft

7 0
2 years ago
A high school booster club is selling raffle tickets for three different prizes. The tickets are $1 for the small prize, $2 for
Ivan

Answer:

x+y+z=15

x+2y+5z=15

-x+y+z=1

Step-by-step explanation:

4 0
3 years ago
9) Which statement is true of the system of equations show below?
Sauron [17]

Answer:

-3x -7y = -14

3x + 7y = 10

0x ¥ -4

answer is d

6 0
4 years ago
Yolanda has a piece of rectangular fabric measuring 30 centimeters by 9 centimeters. She uses half of the material to make a pup
IRINA_888 [86]
It is 67.5 centimeters
8 0
3 years ago
Other questions:
  • The ratio of boys to girls in the 9th grade is 5 to 6. There are 312 girls. Set up a proportion to model this information.
    8·2 answers
  • The function rule of a certain function is y = -3x + 1. If the input is 7, what is the output?
    6·1 answer
  • Determine the solution for 2^(-x)+1=5^x+2
    9·1 answer
  • Libby’s dog stands 7/9 yard tall, and Jeff’s dog stands 5/6 yard tall. How much taller is Jeff’s dog than Libby’s dog?
    15·1 answer
  • What is the volume of a sphere with a diameter of 22ft? Round your answer to the nearest cubic foot.
    8·2 answers
  • Quick I need helppp!!<br><br> 4.7= a + 3.09; a= 0.8, 0.98, 1.61, 7.79
    7·1 answer
  • Expand the polynomial: (5/8 x + y^5)(-5/8 x - y^5)
    7·1 answer
  • A coordinate plane. A larger number is 2 more than 4 times a smaller number. The larger number is also 8 more than 2 times the s
    13·2 answers
  • (6²+2²)÷4−10 Can someone HElp?
    10·2 answers
  • A car dealer acquires a used car for $7,000, with terms fob shipping point. compute total inventory costs assigned to the used c
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!