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EastWind [94]
3 years ago
10

Help pls ill answer 1 of your questions

Mathematics
1 answer:
Anestetic [448]3 years ago
4 0

I can’t help with out a problem to solve

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A family consists of a father, a mother and 2 children. What is the probability that all 2 children are boys?
pashok25 [27]

Answer:

¼

Step-by-step explanation:

The probability of having a boy is ½ and that of a girl is ½.

Probability of boy, boy is (pb*pb) and given pb to be ½ then we can prove the point as follows

For these two children

The options are as follows

1 boy(first) and 1 girl

2 boys

2 girls

1 girl( first) and 1 boy

These are four possible options and the option for two boys is 1 out of the four.

The probability of 2 boys is ½*½=¼

4 0
3 years ago
The ice skating rink rents 25 pairs of skates each hour. Write an expression that represents the pairs of skates rented in h hou
Nookie1986 [14]

175 pairs of skates are rented for 7 hours.

Step-by-step explanation:

Given,

Pairs of skated rented each hour = 25

Let,

Number of hours = h

Total pairs rented = T

T = Pairs rented each hour * number of hours

T = 25h

Evaluate the expression for 7 hours.

h = 7

T=25(7)\\T=175

175 pairs of skates are rented for 7 hours.

Keywords: multiplication, linear expression

Learn more about multiplication at:

  • brainly.com/question/10541435
  • brainly.com/question/10666510

#LearnwithBrainly

3 0
3 years ago
Simplify -1-18<br> -<br> (18)<br> O - |18|<br> 0-18<br> O 18
sertanlavr [38]

Answer:

simplify -1-18

Step-by-step explanation:

Subtract  18  from −1

− 19

6 0
2 years ago
PLEASE HELP Which line has an x-intercept of -5 and a y-intercept of 3?
anygoal [31]

Answer:

the first answer or a

Step-by-step explanation:

just believe meeeee

5 0
3 years ago
A scientist finds the temperature of a sample at the beginning of an experiment is t degrees celcius. After 1 hour, the temperat
ale4655 [162]
So the two possible original temperatures would be either -9 or 9.
6 0
3 years ago
Read 2 more answers
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