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anzhelika [568]
3 years ago
11

Please + brainliesting.

Mathematics
1 answer:
gogolik [260]3 years ago
6 0

Answer:

a) 0.3125

b) 45

Step-by-step explanation:

Remark

5 students own a smart phone

11 do not.

Part A

The probability of owning a smart phone is 5/16. Where did the 16 come from.? You must use a total for the sample. You can't choose someone without a smart phone and figure out the probability of doing that if you use 11  in the denominator.

So the answer is 5/16 = 0.3125

Part B

You have to set up a proportion for this.

x / 144 = 5/16  

Notice where the 144 goes. It is across from 16. Both of them represent the total number of students. Multiply both sides by 144

x * 144 / 144 = 5 * 144/16

x = 720 / 16

x = 45

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Step-by-step explanation:

3 0
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FrozenT [24]

Answer:

no, because for x=-3, y would have to be -31

Step-by-step explanation:

boy oh boy (or girl oh girl) - you wrote this in a horrible, horrible format.

I can only guess what your problem and the fitting answer would be.

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8 0
3 years ago
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zhannawk [14.2K]

Answer:

Step-by-step explanation:

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48-x-x-x-x-x-x is an expression, not an equation.

6 0
3 years ago
Express 3/10 + 45/100 as a fraction with denominator 100
AlladinOne [14]
   3/10 + 45/100
= 30/100 + 45/100
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A bag hold 1 blue block and 3 yellow block. How many green Blocks should be added to the bag to makr the probability of randomly
Natasha_Volkova [10]

Hello,

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I hope this helped you!


8 0
2 years ago
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