Ask question

Ask question

All categories

3 years ago

9

a box of 8 marbles has 4 red,2 green and 2 blue marbles. If you select one marble, what is the probability that it is a red or b

lue marble

1 answer:

Vinvika [58]3 years ago

8 0

your answer should be 0.80

You might be interested in

A piano has 52 white keys. Write and use an equation to find the number of octaves on a piano keyboard.

Firdavs [7]

There are 7 keys in each octave (C,D,E,F,G,A and B) so it would make sense to divide 52 to 7.
52/7=7 octaves and 3 extra kets

3 0

3 years ago

Which statements are true of functions? Check all that apply.

IRINA_888 [86]

Where the rest of the question?

7 0

3 years ago

217 is what percent of 620

Flura [38]

$\sf \dfrac{217}{620} \\ \\ = 0.35 \\ \\ Convert \ the \ decimal \ percent \ by \ multiplying \ 100 \\ \\ 0.35 \times 100 \\ \\ = 35\%$

3 0

3 years ago

Solve the system of equations graphicallySolution=?

BigorU [14]

The given system is

$\begin{cases}y=\frac{5}{2}x-8 \\ y=-\frac{1}{2}x-2\end{cases}$

Given that y = y, let's combine the equations

$\frac{5}{2}x-8=-\frac{1}{2}x-2$

Let's solve for x

$\begin{gathered} \frac{5}{2}x+\frac{1}{2}x=8-2 \\ \frac{6}{2}x=6 \\ 3x=6 \\ x=\frac{6}{3} \\ x=2 \end{gathered}$

Then, we find y

$y=-\frac{1}{2}x-2=-\frac{1}{2}\cdot2-2=-1-2=-3$

The solution is (2, -3).

The image below shows the solution graphically.

3 0

1 year ago

(2) Mai walked 1/8 of a 30-mile walking trail. How many miles did Mai walk? Explain or show your reasoning. *

hammer [34]

Answer: 3.75 miles

Step-by-step explanation:

Divide 30 by 8. 30/8= 3.75. If she walked 1/8 then she walked 3.75 miles

5 0

2 years ago