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juin [17]
3 years ago
7

A bag contains five red marbles, fifteen black marbles, and ten white marbles. You pick one without looking. What is the probabi

lity that the marble will be either red or white
Mathematics
1 answer:
aliya0001 [1]3 years ago
6 0

Answer:

Step-by-step explanation:

5 red

15 black

10 white

altogether the is 30 marbles so that means it is 'out of'  30

and because the is 5 red it would be 5/30

and because the is 10 white it would be 10/30

that should be the answer but if you have to work the total all together then it would be 15/30

hope this helps :)

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Liliana wants to determine the height of an enlarged photo that she plans to frame. The original photo was 11 inches wide by 14
inn [45]

Answer: 168 inches.

Explanation:

First thing you must always do when solving word problems is read closely, and take note of any number.

In this case, the first thing we must do is find the scale factor.

For this, we use one of the dimensions. We will use the width of the photo.

We have then:

k = 132/11

k = 12

Then, we look for the value of the height of the new photo. To do this, we multiply the scale factor by the original dimension.

We have then:

14k = 14 (12) = 168

Thus, 168 inches is your answer! :)

Hope this helps! :)

7 0
3 years ago
Read 2 more answers
This equation shows how the time required to ring up a customer is related to the number of items being purchased. t = 4p + 20 T
konstantin123 [22]

Answer:

6 items are being purchased

Step-by-step explanation:

Given that  variable p represents the number of items being purchased, and the variable t represents the time required to ring up the customer, If it takes 44 seconds to ring up a customer then the number of items being purchased may be computed by substituting the value of t into the given equation

t = 4p + 20.

Using t = 44

44 = 4p + 20

collect like terms or subtract 20 from both sides

44 - 20 = 4p

24 = 4p

Divide both sides by 4

24/4 = p

p = 6

4 0
3 years ago
What is 42 divided by 7
Zinaida [17]
42 divided by 7 is is 6 hope this helps
4 0
3 years ago
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If a bike is on sale for 45% off of the regular price. If the sale price is $299.75 what was the original price
7nadin3 [17]

Answer: It would of been $339.25

Step-by-step explanation: If you do the math  299 divided by 45 you  will get 40 so now add 40 to 299 you will get $339 minus 50 cents will be 25 so $339.25 would be the original price of the bike.

4 0
3 years ago
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What is 6x3/5 as a mixed number
Katen [24]
First, make 6 into an improper fraction.
6/1
Now multiply the numerators.
6x3=18
Now, the same with the denominators.
1x5=5
18/5
Now make it into a mixed number.
5x3=15
3 and...
18-15=3
3 and 3/5!!
Hope this helped!
8 0
3 years ago
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