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IceJOKER [234]
2 years ago
10

Shalise competed in a jigsaw puzzle competition where participants are timed on how long they take to complete puzzles of variou

s sizes.
Shalise completed a small puzzle in 75 minutes and a large jigsaw puzzle in 140 minutes. For all participants, the distribution of completion
time for the small puzzle was approximately normal with mean 60 minutes and standard deviation 15 minutes. The distribution of completion
time for the large puzzle was approximately normal with mean 180 minutes and standard deviation 40 minutes.
Approximately what percent of the participants had finishing times greater than Shalise's for each puzzle?

Mathematics
1 answer:
Sholpan [36]2 years ago
3 0

Answer:

16% on the small puzzle and 84% on the large puzzle.

Step-by-step explanation:

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The number f of miles a helicopter is from its destination x minutes after takeoff is given by f(x)=75−1.5x. The number f of mil
soldier1979 [14.2K]

Answer:

9

Step-by-step explanation:

10-1=9

5 0
2 years ago
In a basketball tournament, team A scored 6 more points than 3 times as many points as team B scored. Team C scored 45 more poin
Sophie [7]
A + B + C = 476
A = 3B + 6
C = B + 45

now its just a matter of subbing..
A + B + C = 476
(3B + 6) + B + (B + 45) = 476...combine like terms
5B + 51 = 476
5B = 476 - 51
5B = 425
B = 425/5
B = 85 <== team B scored 85

A = 3B + 6
A = 3(85) + 6
A = 255 + 6
A = 261 <=== team A scored 261

C = B + 45
C = 85 + 45
C = 130 <=== team C scored 130
6 0
2 years ago
Read 3 more answers
Just need a little help
CaHeK987 [17]
2/3x + 6 - 1/3x -4 = -6
1/3x + 2 = -6
1/3x = -6 - 2
1/3x = -8
x = -8 * 3
x = -24

5 0
2 years ago
Marla did 65 sit ups each day for one week.Use the distributive property to show an expression you can use to find the total num
poizon [28]
The distributive property <span> lets you multiply a sum by multiplying each addend separately first and then summing the products together.
Marla did 65 x 7 = 455 sit-ups during the week

65 sit-ups can be written as 60+5 sit ups or as 50+15 sit-ups or as 40+25 sit-ups (these are just examples)

Applying the distributive property:
Marla did: (60 x 7) + (5 x 7) = 455 sit-ups during the week, or
Marla did: (50 x 7) + (15 x 7) = 455 sit-ups during the week, or
Marla did: (40 x 7) + (25 x 7) = 455 sit-ups per week

You can try this with any two numbers whose sum is 65 and all will give you the same answer.

</span>
7 0
2 years ago
Huixian mother buys some shares of company A on day 0. on day 7, the share price of company a is $4.60. if she sells all her sha
Wewaii [24]
I think that u might want to do the share the company money i could be wrong but if i sm sorry

4 0
2 years ago
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