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igomit [66]
3 years ago
11

A math class has 3 girls and 7 boys in the 7th grade and 5 girls and 5 boys in the 8th grade the teacher randomly selects a seve

nth grader and an 8th grader from the class for a completion what is the probability that the students she selects are both girls
Write your answer as a fraction
Mathematics
1 answer:
Minchanka [31]3 years ago
8 0
In the 7th and 8th grade combined, there 3+5 girls = 8 girls, and 7+5 boys = 12 boys. If there are only boys and girls, then there are 12+8=20 students in all. 

The fraction of girls out of the total is P = 8/20 = 2/5.
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URGENT ! HELP ! Question is in photo below.
kifflom [539]

\frac{3(x+5)}{2} \cdot 2=21\cdot 2

Above step we use "Multiplication property of equality"

3(x+5)=42

In the above step we "Simplify on both sides of equation"

3x+15 = 42

In the above step we use "Distribution property"

3x+15-15=42-15

The above step is the result of using "Subtraction property of equality"

3x=27

Above step is result of "Combining the like terms"

\frac{3x}{3} =\frac{27}{3}

Above step is the result of using "Division property of equality"

x=9

Above step is result of "Simplifying fractions on either side of equation"

4 0
4 years ago
Drag steps in the given order to evaluate this expression. <br><br> (4)(−3)−5−3(−6)
never [62]

Answer:

1

Step-by-step explanation:

using PEDMAS(parentheses, exponents, division, multiply, addition, subtraction) to solve the problem

First we multiply (4)(-3)

(4)(−3)−5−3(−6)

Then multiply -3(-6)

(-12)-5-3(-6)

=-12-5+18

subtract 12-5

-12-5+18

=-17+18

Adding -17+18 gives us 1.

Therefore,  (4)(−3)−5−3(−6) is 1.

3 0
3 years ago
If you borrowed $646 at an interest rate of 5% for 6 years, how much interest will you pay? Round to the nearest tenth if necess
k0ka [10]

Answer:

Total interest you will pay is $103.07.

The total you will pay for interest and loan amount is $749.07

iStep-by-step explanation:

8 0
3 years ago
Please help with this thank you
RUDIKE [14]

1/4 is 25 percent so it is still 40.00

6 0
2 years ago
I need help with this question
Vikki [24]

Answer:

a) (1|4)

b) 3

c) 3

Step-by-step explanation:

the turning point is when the graph is at it's highest or lowest point, so here it is 1 for x and 4 for y. I'm not sure if i did b and c right but i think i did

8 0
3 years ago
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