A cup has 4 pencils, 3 black pens, 1 blue pen, and 5 red pens. What is the probability of selecting a black or blue pen?

Mathematics

2 answers:

telo118 [61]3 years ago

7 0

4 out of 13 because in total there are 13 supplies in all and if you add 3 black pens PLUS 1 blue pen that will be 4.

tekilochka [14]3 years ago

5 0

The probability of selecting a black or blue pen is 4 out of 13. You calculate this by adding the amount of pens together and comparing it to the total amount of pens and pencils in the cup.

You might be interested in

H(x) = x^2 + 1 k(x) = x – 2 (h + k)(2)=?

likoan [24]

First we will compute the h+k and then multiply the result by 2.
To add polynomials, we add terms whose variables are alike, for example:
we add the coefficients of x^2 together, the coefficients of x together and so on.

Therefore:
h + k = x^2 + 1 + x - 2 = x^2+x-1

Now, we will multiply this answer by 2 to get the final answer:
2(h+k) = 2(x^2+x-1) = 2x^2 + 2x -2

6 0

3 years ago

Annette [7]

Answer:

Step-by-step explanation: If you do the math you can clearly see and I got the answer correct.

7 0

3 years ago

Fins the product of 5/12 And 3/8

Kamila [148]

Answer:

Step-by-step explanation:

( 5/12) × (3/8) =(5×3)/(12×8) = 5/32