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
frez [133]
3 years ago
7

There are 25 kids in a class, and the number of boys is 2/3 of the number of girls. How many boys and how many girls are in this

class?
Mathematics
1 answer:
Ksju [112]3 years ago
3 0
25 kids in all
2xboys:3x girls
 
so the equation would be 
2x+3x=25
solve,
5x=25
/5           /5
x=5
2x=10
3x=15


10 boys and 15 girls



You might be interested in
The base of a regular pyramid is a hexagon.
mina [271]

216 square root 3 cm ^2
6 0
3 years ago
Read 2 more answers
A rubber of length 89m is cut into 3 equal pieces. What is the length of each piece.
borishaifa [10]

Answer: i dont see the answer listed. The answer is 29 ²/₃m

Step-by-step explanation:

89m long piece of rubber is cut into 3 pieces. In other words, divided into 3 pieces.

89m ÷ 3 = 29.66666666m

Which concerts to 29²/₃m

4 0
2 years ago
1.your aswer:
lutik1710 [3]

Answer:

Tess is correct

Step-by-step explanation:

First off, to find out the new discounted price without the sales tax, you multiply $24.50 by 15% (0.15). This gives you $3.68. You then subtract the $3.68 from $24.50. You get $20.82. To find the total with sales tax you then multiply the $20.82 by 10% (0.1). You add the discounted price with the sales tax and get the conclusion that they have enough money for the book.

3 0
2 years ago
Read 2 more answers
- 18°
Trava [24]

Answer:

use mathwsy

Step-by-step explanation:

6 0
3 years ago
Find how many six-digit numbers can be formed from the digits 2, 3, 4, 5, 6 and 7 (with repetitions), if:
Goshia [24]

Answer:

case 1 = 2592

case 2 =  729

case 1 + case 2 =  2916

(this is not a direct adition, because case 1 and case 2 have some shared elements)

Step-by-step explanation:

Case 1)

6 digits numbers that can be divided by 25.

For the first four positions, we can use any of the 6 given numbers.

For the last two positions, we have that the only numbers that can be divided by 25 are numbers that end in 25, 50, 75 or 100.

The only two that we can create with the numbers given are 25 and 75.

So for the fifth position we have 2 options, 2 or 7,

and for the last position we have only one option, 5.

Then the total number of combinations is:

C = 6*6*6*6*2*1 = 2592

case 2)

The even numbers are 2,4 and 6

the odd numbers are 3, 5 and 7.

For the even positions we can only use odd numbers, we have 3 even positions and 3 odd numbers, so the combinations are:

3*3*3

For the odd positions we can only use even numbers, we have 3 even numbers, so the number of combinations is:

3*3*3

we can put those two togheter and get that the total number of combinations is:

C = 3*3*3*3*3*3 = 3^6 = 729

If we want to calculate the combinations togheter, we need to discard the cases where we use 2 in the fourth position and 5 in the sixt position (because those numbers are already counted in case 1) so we have 2 numbers for the fifth position and 2 numbers for the sixt position

Then the number of combinations is

C = 3*3*3*3*2*2 = 324

Case 1 + case 2 = 324 + 2592 = 2916

4 0
3 years ago
Other questions:
  • Find each of the following sums and differences. Write your answer in simplest standard form. (Help with b and d)
    11·1 answer
  • Quadrilateral DABC was dilated to form quadrilateral EFGH.
    11·1 answer
  • Write an equation of the line that passes through (3,1) and (3,5).Write in slope-int.form (y=mx+b)
    15·1 answer
  • Use the expressions that represent the length and width of the game board to write an equation that models the area of the figur
    5·1 answer
  • What is 327.24 rounded to the nearest whole number
    8·2 answers
  • Plz help ASAP!!!!!!!!!!! <br> IT HAS TO BE CORRECT!
    7·1 answer
  • 35 girls and boys have planned for a walk. There is a ratio of 5 girls to 2 boys. How many boys are there
    15·2 answers
  • Right triangles and trigonometry help!
    14·1 answer
  • Find the value for x
    15·1 answer
  • Hii! please help i’ll give brainliest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!