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2 years ago

11

Brady has a bag with 6 black pens, 6 blue pens, and 2 red pens. If he grabs a pen at random, what is the probability that the pe

n is not red?.

1 answer:

DedPeter [7]2 years ago

8 0

Answer: 6/7

Step-by-step explanation:

If the pen is not red, it must be either black or blue.

Therefore, the probablity is (6+6)/(6+6+2)

= 12/14

= 6/7

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21r-7-r+5=-52 solve for r

malfutka [58]

Answer:

r = - 2.5

$r=-2\frac{1}{2}$

Step-by-step explanation:

21r - 7 - r + 5 = - 52

20r - 2 = - 52

20r - 2 + 2 = - 52 + 2

20r = - 50

20r ÷ 20 = - 50 ÷ 20

r = - 2.5

3 0

3 years ago

Read 2 more answers

Martha is training for a duathlon, which includes biking and running. She knows that yesterday she covered a total distance of o

umka21 [38]

<u>Answer:</u>

<u>Distance:</u> 6x + 15.5y > 55.5

<u>Time:</u> x + y > 4.5

<u>Step-by-step explanation:</u>

We are given that Martha is training for a duathlon and she covered a total distance of over 55.5 miles in more than than 4.5 hours of training.

Also, she runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

We are to write inequalities representing the distance she traveled and the total time she spent training.

<u>Distance:</u> 6x + 15.5y > 55.5

(formula for distance = speed x time so speeds for running and biking are multiplied by their number of hours)

<u>Time:</u> x + y > 4.5

(she trained for more than 4.5 hours, x hours for running and y hours for biking.

4 0

3 years ago

If the greatest integer function is called the floor function because it rounds any number down to the nearest integer, what wou

Phantasy [73]

Ceiling Function is the least integer that is greater than or equal to x.

5 0

3 years ago

Read 2 more answers

What is the area of a parallelogram with a base of 38 meters and a height of 12 meters?

8090 [49]

For this case we have by definition that the area of a parallelogram is given by:

$A = b * h$

Where:

b: It's the base

h: It's the height

According to the data we have:

$b = 38\ m\\h = 12 \ m$

Substituting in the formula:

$A = 38 * 12\\A = 456$

The area of the parallelogram is $A = 456 \ m ^ 2$

Answer:

$A = 456 \ m ^ 2$

4 0

3 years ago

Read 2 more answers

Please answer this correctly

MAVERICK [17]

Answer:

1:50 PM

Step-by-step explanation:

Left school at 10:38 AM,

took them 51 minutes,

38+51=89,

89-60=29,

so when they drove to the museum, it was 11:29 AM.

From here, they stayed at the museum for 1 hour and 26 minutes,

so they stayed at the museum until 12:55 AM since 29+26=55.

Now, it took them 55 minutes to drive back to the school,

so 12:55 plus another 55 minutes,

it's going to be 1:50 PM when Dale's class got back to school.

7 0

3 years ago