Ask question

Ask question

All categories

2 years ago

8

A teacher chooses two students in a class of 15 girls and 10 boys. The students are randomly chosen. What is the probability tha

t the teacher chooses two girls?
1. 3/5
2. 3/7
3. 7/12
4. 7/20

1 answer:

Stella [2.4K]2 years ago

7 0

Answer:

15/25 which simplifies to 3/5 which is the first answer

Step-by-step explanation:

You might be interested in

What value of k makes the equation true? (5a^2 b^3)(6a^k b)=30a^6 b^4

Ratling [72]

we are given

$(5a^2 b^3)(6a^k b)=30a^6 b^4$

Firstly, we will simplify left side

and then we can solve for k

Left side is

$(5a^2 b^3)(6a^k b)$

we can arrange like terms

$(5a^2 6a^k)(b^3 b)$

$(5\times 6 a^2a^k)(b^3 b)$

$(30 a^2a^k)(b^3 b^1)$

now, we can use property of exponent

$a^m \times a^n=a^{m+n}$

$(30 a^{2+k})(b^{3+1})$

$30a^{2+k}b^{4}$

now, we can equate it with right side

and we get

$30a^{2+k}b^{4}=30a^6 b^4$

We can see that both sides have 30 , a and b

and they are equal

so, exponent of a must also be equal

$2+k=6$

now, we can solve for k

$2+k-2=6-2$

$k=4$ ................Answer

3 0

3 years ago

Read 2 more answers

Is AABC a right triangle? How do you know?

Kazeer [188]

Answer:

it would be C because they don't give enough information

5 0

1 year ago

What is 3 times the sixth power of ten

Ilya [14]

Your answer would be 3000000

3 0

3 years ago

PLEASE HELP ASAP!! THIS IS LATE! :(

Svetach [21]

Answer:

States sent representatives to Congress and provided soldiers and some officers to protect the country.

4 0

2 years ago

The prodoct of 4 and number plus 17 is 5

vichka [17]

Answer:

-3

Step-by-step explanation:

The product (the result of a multiplication) of 4 and a number. Let x be the unknown number:

4 · x = 4x

Plus 17:

4x + 17

Is 5:

4x + 17 = 5

Solve:

4x = 5 - 17

4x = -12

x = -12 ÷ 4

x = -3

3 0

3 years ago

Read 2 more answers