Ask question

Ask question

All categories

3 years ago

9

A box contains 3 yellow, 2 red, 4 green and 3 black marbles. Two marbles are taken one after the other at random from the box. W

hat is the probability that both marbles are red?

1 answer:

Nata [24]3 years ago

7 0

I believe it's 2/10.

You might be interested in

Whats, the actual answer

WITCHER [35]

where's the question??

7 0

3 years ago

Read 2 more answers

8j - k + 14 when j = 0.25 and k = 1

Minchanka [31]

Answer:

15

Step-by-step explanation:

8(0.25) - 1(1) + 14

2 - 1 + 14

1 + 14

15

7 0

3 years ago

Read 2 more answers

solve for x 2/3x=4 ????????????????????????????????????????????? this has to be like 26 characters long so don't mind the questi

just olya [345]

The answer is 6/////////////

7 0

3 years ago

Identify the coefficient and the exponent for each term of 8x ^ 4 - 2x

velikii [3]

Step-by-step explanation:

Given binomial is: $8x^4 - 2x$

$in \: the \: term \: 8 {x}^{4} \\ coefficient = 8 \\ exponent = 4 \\ \\ in \: the \: term \: - 2x \\ coefficient = - 2 \\ exponent = 1$

4 0

3 years ago

a positive number is 7 times another number if 3 is added to both the numbers then one of the new number becomes 5 by 2 times th

Neko [114]

Answer:

7 and 1

Step-by-step explanation:

Let the numbers be a and b.

<u>A positive number is 7 times another number:</u>

a = 7b

<u>If 3 is added to both the numbers then one of the new number becomes 5 by 2 times the other new number:</u>

a+3 = 5/2 × (b +3)

<u>To solve this we substitute </u><u>a</u><u> with </u><u>7b</u><u> in the second equation:</u>

7b + 3 = 5/2 × (b +3) ⇒ multiplying both sides by 2
14b + 6 = 5b + 15 ⇒ collecting like terms
14b - 5b = 15 - 6
9b = 9
b = 1 ⇒ solved for b

<u>Then, finding a:</u>

a= 7b
a=7*1
a= 7 ⇒ solved for a

<u>So the numbers are</u> 7 and 1

3 0

3 years ago