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
denpristay [2]
3 years ago
15

I've only learned how to solve for a single variable. :')

Mathematics
1 answer:
MariettaO [177]3 years ago
7 0

Answer:brainliest plsssss

Step-by-step explanation:

1/2x+15=x

X+30=2x

30=2x-x

30=x

Number of girls in class

30-12=18

☆ the number of girls in his class are 18

You might be interested in
T had 53,790 miles onit. They had the car for 8.25 years. On average, how many miles did they drive per year?
liq [111]

Answer: ‭6,520‬ miles per year

Step-by-step explanation:

They had driven the car for 53,790 miles in 8.25 years.

The average number of number of miles driven per year is:

= 53,790 / 8.25 years

= ‭6,520‬ miles per year

<em>They drove an average of ‭6,520‬ miles per year.</em>

7 0
2 years ago
Your little cousin will have a big animal-themed birthday party and you will help with the goody bags. Each bag will have a penc
Bas_tet [7]

Using the least common factor, it is found that:

  • a) 60 packages should be bought.
  • b) There will be 5 filled goody bags.

<h3>Least Common Factor:</h3>
  • The sizes of the packages are: 10, 6, 15 and 12.
  • To fill each bag and have no left-overs, the number of packages is the <u>least common factor</u> of these amounts.
  • The least common factor is found factoring the numbers into prime factors.

Item a:

10 - 6 - 15 - 12|2

5 - 3 - 15 - 6|2

5 - 3 - 15 - 3|3

5 - 1 - 5 - 1|5

1 - 1 - 1 - 1

Hence, lcf(10,6,15,2) = 2 x 2 x 3 x 5 = 60.

60 packages should be bought.

Item b:

Goody bags are in packages of 12, hence:

60/12 = 5.

There will be 5 filled goody bags.

To learn more about the least common factor, you can take a look at brainly.com/question/24873870

6 0
2 years ago
-3(X - 8) - (x + 5) - 23
rjkz [21]

Answer: −

3

X

−

x

−

4

Step-by-step explanation:

7 0
2 years ago
Math Math Math Math help help help
Alchen [17]

Answer: 5a: 5/8

Step-by-step explanation: sorry, thats the only one i can read `:)

5 0
2 years ago
Read 2 more answers
Can a triangle be formed with the side lengths of 2.9 in, 4.8 in, and 7.4 in?
ddd [48]

Answer: Yes

Step-by-step explanation: A triangle can be formed because A+B>C

A and B are 2.9 and 4.8

Since those numbers have the least value

I added both and found that A and B are equal to 7.7

7.7>7.4

These sides could form a triangle

6 0
3 years ago
Other questions:
  • A rectangle is 12 inches long and 7 inches wide. What is the area of the rectangle and square centimeters?
    5·1 answer
  • Otto used 6 cups of whole wheat flour and x cups of white flour in the recipe. What is the equation that can be used to find the
    7·2 answers
  • Brandon and Jerry like to play video games. Brandon has vv video games, and Jerry has 29 video games. Together they have a total
    8·1 answer
  • 105n^3 + 175n^2 + 75n - 125
    15·1 answer
  • The legs of a right triangle are 3 units and 10 units. What is the length of the hypotenuse? Round your answer to the nearest hu
    7·2 answers
  • Can someone please help me with this problem...thanks
    9·1 answer
  • Evaluate -4w-3z when w= 5.6 and z = -2.9
    12·1 answer
  • HELPPPPPPPPPPP MEEEEEE
    13·1 answer
  • Put these in order from least to greatest<br> 14 √166 13
    14·1 answer
  • A new company selling sports equipment sold 2,835 helmets in their second year of operation. This is 225% of the number of helme
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!