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kari74 [83]
3 years ago
6

Help PLEASE!

Mathematics
2 answers:
nignag [31]3 years ago
8 0
The third one is the answer you have to do on caculator
Yakvenalex [24]3 years ago
4 0
I think it is the 3rd one but I don’t know if that is right
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In​ 2016, 1 out of every 5 people under the age of 50 used a cell phone to read​ e-books. If there were approximately 225 millio
statuscvo [17]

Answer: 45

Step-by-step explanation:

In​ 2016, 1 out of every 5 people under the age of 50 used a cell phone to read​ e-books. This means that 2 out of every 10 people under the age of 50 used a cell phone to read​ e-books. Also, 3 out of every 15 people under the age of 50 used a cell phone to read​ e-books.

Therefore, if there were x people under the age of 50 in​ 2016, then the number that used a cell phone to read​ e-books would be

1/5 × x = x/5

If there were approximately 225 million people under the age of 50 in​ 2016, then the number that were likely to have read an​ e-book on a cell​ phone is

225/5 = 45 people.

3 0
3 years ago
Given that P(A)=0.5 and p(AUB)=0.6 find the P(B) if P(A/B) =0.4?
Yuki888 [10]
First we have to find p(AnB)
P(A/B)=p(AnB)/p(A)
P(AnB)=p(A) x p(A/B)
P(AnB)=0.5 x 0.4 = 0.2
Then to find p(B)
P(A∪B) = P(A) + P(B) - P(A∩B)

P(A∪B) = 0.5+p(B)-0.2
0.6=0.3+p(B)
P(B)=0.6-0.3=0.3

4 0
2 years ago
Estimate how many 12 inch rulers will be about the same length as a teacher's desk.
Vaselesa [24]
My teachers desk would fit about 6 1/2
6 0
3 years ago
16. A proportional relationship between the number of pounds of tomatoes (x) and the price in dollars (y) is graphed, and the or
kondaur [170]

The relationship being proportional means there is a value of k such that

... y = k·x

We are given the point (6 (pounds), 3 (dollars)), so we can write ...

... 3 dollars = k·6 pounds

Dividing by 6 pounds, we get

... (3/6) dollars/pound = k = $0.50/lb

Now, we can use x=1 pound to find the price (y),

... y = ($0.50/lb)·(1 lb)

... y = $0.50 . . . . the price of 1 pound of tomatoes.

4 0
3 years ago
WXY is a right triangle.<br> A. True<br> B. False
mojhsa [17]

Answer:

need a picture

Step-by-step explanation:

can u give us a picture of the triangle? we can't determine whether point WXY is a right triangle without an image.

4 0
3 years ago
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