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Scorpion4ik [409]
2 years ago
8

a drawer contains 30 pens of various colors: 4 are black 10 are blue, 3 are red, 6 are green , 6 are blue and red and 1 white A

pen having blue or red is taken out of the drawer
Mathematics
1 answer:
alex41 [277]2 years ago
7 0

Answer:

Probability of blue or red = 3/10

Step-by-step explanation:

4 are black 10 are blue, 3 are red, 6 are green , 6 are blue and red and 1 .

Total = 30

Probability of having a blue = 6/30

Probability of having a blue= 1/5

Probability of a red = 3/30

Probability of a red= 1/10

Probability of a blue or a red=

Probability of blue + probability of red

= 6/30 + 3/30

= 9/30

= 3/10

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Three rational numbers between 5/31 and 6/31
Ludmilka [50]

Answer:

\dfrac{26}{155}, \dfrac{27}{155}, and \dfrac{28}{155}.

Step-by-step explanation:

What is a rational number? By definition, a rational number can be represented as the fraction of two integers.

The goal is to find three fractions in the form \dfrac{p}{q} between \dfrac{5}{31} and \dfrac{6}{31}.

\dfrac{5}{31} < \dfrac{p}{q} < \dfrac{6}{31}.

At this moment, there doesn't seems to be a number that could fit. The question is asking for three of these numbers. Multiple the numerator and the denominator by a number greater than three (e.g., five) to obtain

\dfrac{25}{155} < \dfrac{p}{q} < \dfrac{30}{155}.

Since p and q can be any integers, let q = 155.

\dfrac{25}{155} < \dfrac{p}{155} < \dfrac{30}{155}.

\implies 25 < p < 30.

Possible values of p are 26, 27, and 28. That corresponds to the fractions

\dfrac{26}{155}, \dfrac{27}{155}, and \dfrac{28}{155}.

These are all rational numbers for they are fractions of integers.

6 0
3 years ago
Is y=−7x+16 exponential, state if it is growth or decay
Ivenika [448]

Answer:

It is a state of decay.

Step-by-step explanation:

Graph to figure out of it is growth or decay. If it is increasing than it is growth, if it is decreasing it is decay.

Graph:

0   16

1    9

2    2

3    

4

5 0
3 years ago
What is the volume of this solid?<br><br> A. 1104<br> B. 132<br> C. 96<br> D. 276
statuscvo [17]

For this case we have that the volume of the figure is composed of the volume of a prism and the volume of a pyramid:

The volume of the prism is given by:

V = A_ {b} * h

Where:

A_ {b}: It is the area of the base

h: It's the height

Substituting:V = 6 * 6 * 6\\V = 216 \ units ^ 3

The volume of the pyramid is given by:

V = \frac {1} {3} * L ^ 2 * h

Where:

L ^ 2:It is the area of the base

h: It's the height

Substituting:

V = \frac {1} {3} * 6 ^ 2 * 5\\V = \frac {1} {3} * 36 * 5\\V = 60units ^ 3

We add and we have:

V = 276 \ units ^ 3

ANswer:

Option D

6 0
3 years ago
.help me please thanks
Ad libitum [116K]
Its most likely c
hope it helps
7 0
3 years ago
Read 2 more answers
A car salesperson earns 1.5% commission on every car sold. The salesperson sell a car for $22,500. What is the commission?
Mariulka [41]
Commision equals percentage times the amount of money bought for the car. It will be 1.5% (0.015) * 22500. The answer is $337.50.
5 0
3 years ago
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