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Andrew [12]
2 years ago
5

A baseball player reaches first base 20% of the times he is at bat. Out of 70 times at bat, about how many

Mathematics
1 answer:
leva [86]2 years ago
4 0

Roughly 14 times as 20% of 70 is 14.

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On Saturday morning, Ahmed decided to take a bike ride from one end of the 15-mile bike trail to the other end of the bike trail
frosja888 [35]

The expression which relates the total time taken and the time taken for the trip is [15s + 15(s+2)] / s² + 2s and 2.32 hours respectively.

<em>Travel time = distance ÷ speed </em>

<u>Second half of the trip</u> :

  • <em>Speed = s mph</em>

  • <em>Distance covered = 15 miles</em>

<u>Time taken for second half of trip</u> :

Time taken = 15 / s

<u>First half of the trip</u> :

  • <em>Speed = s + 2 mph </em>

<u>Time taken for first half of trip :</u>

Time taken = 15 / (s+2)

<u>Total time taken :</u>

<em>First half + second half</em>

15/(s+2) + 15/s = [15s + 15(s+2)] / s² + 2s

B)

If s = 12

<em>Substitute s = 12 into the expression</em> :

[15(12) + 15(12+2)] / 12² + 2(12)

[180 + 210] / 144 + 24

390 / 168

= 2.32 hours

Therefore, the total time taken is 2.32 hours.

Learn more : brainly.com/question/18796573

3 0
2 years ago
Plz answer this question:
d1i1m1o1n [39]

Yes, Lord Vader !

                                               2/3 x + 5   = 1/2

Multiply each side by  2 :       4/3 x + 10  =  1

Multiply each side by  3 :         4  x + 30  =  3  <== equivalent equation
                                                                                without fractions
 
Subtract  30  from each side:  4x             =  -27

Divide each side by  4 :            x              =  -27/4  =  -6.75 

6 0
3 years ago
I need help. Thank you.
soldier1979 [14.2K]

Answer:

27

Step-by-step explanation:

green is 30%

blue is 50%

red is 6 marbles which when calculated is equal to 20%

blue would then be 15 marbles as the whole 100% would equal to 30 marbles

if 40% is added which is also 12 marbles then 15+12 = 27

7 0
2 years ago
Guys please this is my second time posting this I really need help. And if you answer this you can answer my other same question
spayn [35]

Answer: F and H I think are vertical

Step-by-step explanation:

I'm sorry i couldn't help you

4 0
3 years ago
Jill and Lori each walk in a straight line between two points. Using the points on a map they created, Jill will start at (–2,–4
Olenka [21]
We develop the equation for each of the tracks that will be walked through by Jill and Lori. 
                   Jill:  y - 2 = ((2 - -4)/(4 - -2))(x - 4) ;   y = x - 2
                   Lori: y - 6 = ((-4 - 6)/(4 - -1))(x + 1);   y = -2x + 4
The intersection of these equation is (2,0). 
6 0
2 years ago
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