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aleksley [76]
4 years ago
10

Please help me... ASAP

Mathematics
1 answer:
alexgriva [62]4 years ago
8 0

Answer:

d.

Step-by-step explanation:

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The ratio of boys to girls in a class is 2:3. If there are 18 girls in the class, what is the probability of a boy being in the
lukranit [14]

Answer:

0.4

Step-by-step explanation:

If the ratio of boys to girls in a class is 2:3, then

  • there are 2x boys;
  • there are 3x girls.

If there are 18 girls in the class, then

3x=18\\ \\x=6

Thus, there are

  • 2\cdot 6=12 boys;
  • 3\cdot 6=18 girls;
  • 12+18=30 students in total.

The probability of a boy being in the class is

P=\dfrac{12}{30}=\dfrac{2}{5}=0.4

7 0
3 years ago
Please Help!
nikklg [1K]

Answer:

12.6 miles every hour

Step-by-step explanation:

113.4 divide by 9 equals 12.6 so 12.6 times 9 hours equals 113.4 this is so easy its 4 grade work i am in 8th

7 0
3 years ago
How many zero pairs must be added to the function
lakkis [162]

Answer:

In short, Your Answer would be Option D) 25

Hope this helps!

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which questions result in data that is categorical? Check all that apply.
Rasek [7]

Answer:

1,2,3,5

Step-by-step explanation:

1-Is your job as an IT administrator stressful?

2-What is your biggest source of stress?

3-How has your job impacted your personal life?

5-Have you ever considered switching careers because of on-the-job stress?

8 0
3 years ago
Could someone help me please ​
Alexxx [7]

1. 3x+9-9=18-9      

3x=9

x=3

2. 4x-12=20

4x-12+12=20+12

4x=32

x=8

3. x+0-0

x=0

4. x/2-2+2=9+2

x/2=11

(2)(x/2)=11(2)

x=22

5. 12x-21=3

12x-21+21=3+21

12x=24

x=2

6. 3x-15=18

3x-15+15=18+15

3x=33

x=11

7. 3x-25=14

3x-25+25=14+25

x=13

8. 3x+16=22

3x+16-16=22-16

x=2

9. 2x-8=2

2x-8+8=2+8

2x=10

x=5

10. 9x-18=9

9x-18+18=9+18

9x=27

x=3

11. x+0=0

x=0

12. 9x-8=19

9x-8+8=19+8

9x=27

x=3

If  you want to check my answers

use substitution method by using the x into for each equation.

7 0
3 years ago
Read 2 more answers
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