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VikaD [51]
4 years ago
9

Probability:

Mathematics
1 answer:
HACTEHA [7]4 years ago
6 0
A: We want to select one person who works out three days a week. Our probability is simply 12/80 ~~ 15%

B: At least 4 days a week means 4 days, 5 days, or 6 days.
Hence, we have: (9 + 20 + 8)/80 = 46%

C: At least once a week.
Let's find out how many DO NOT work out and subtract that from our sample space. This means they must work out at least once a week.

(80 - 15)/80 = 81%
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a classic car is now selling for 500 more than three times its original price if the selling prices is now 11,000 what was the c
ExtremeBDS [4]

Answer:

3500 (i think)

Step-by-step explanation:

\frac{11000 - 500}{3}  = 3500

6 0
3 years ago
For f(x)=2x+1 and g(x)=x^2-7, find (f-g)(x)
mrs_skeptik [129]
I hope this helps you



(f-g)(x)=2x+1-(x^2-7)



(f-g)(x)=2x+1-x^2+7


(f-g)(x)= -x^2+2x+8
5 0
4 years ago
Read 2 more answers
*HELP ME PLEASE* Consider the equation: 3x + 1 – 9 = 3(x + 2) + n.
Lubov Fominskaja [6]

Answer:

n  = -14

Step-by-step explanation:

Let us try to solve this equation for n;

     3x + 1 - 9  = 3(x + 2)  + n

     3x  - 8  = 3x + 6 + n

      3x - 3x -8 - 6  = n

              -14  = n

The value of n  = -14

This value is the value of the equation that will have no solution.

 To know if we are correct, let us input this value into the expression

        3x + 1 - 9  = 3(x + 2)  + n

        3x - 8  = 3x + 6 -14

 Collect like terms;

        3x - 3x  = 8 + 6 - 14

               0 = 0

4 0
3 years ago
I don't know this I don't understand it
DochEvi [55]
B
is the right answer. 
hope i helped

5 0
3 years ago
Estimate product using rounding 9.7 x 3.3=
Anestetic [448]
9.7*3.3=32.01
32 is the rounded product
8 0
3 years ago
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