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Vadim26 [7]
2 years ago
13

Mr. Hamilton surveyed his class to find the total number of hours each of his students slept the previous night. The histogram s

hows the results of the survey.
How many more students slept 4 – 7 hours than 12 – 15 hours?

Mathematics
1 answer:
grigory [225]2 years ago
8 0

Answer:

6 more students

Step-by-step explanation:

hope this helps

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I'm so confused!!!!! Can somebody plz help me!!!plz
ZanzabumX [31]
I would suggest looking up a converter chart, I don't know all of them but I can help with some.
For yards to feet you have to divide by 3 because there are 3 feet in a yard.
For lbs, it's 16 oz in a pound, so divide by 16.
For miles to yards you divide by 1760 because there are 1760 yards in a mile.
I hope this helps a little bit.
8 0
3 years ago
Matt is making cookies. He adds 3 over 4 cup of sugar to a bowl. He then removes two 1 over 8 cups of sugar. Which of the follow
pantera1 [17]

Answer:

he has 5/8 sugar left

Step-by-step explanation:

He adds 3/4 cup of sugar to a bowl. He then removes two 1/8 cups of sugar.

7 0
3 years ago
Answer this as quick as possible please! (NO EXPLANATION REQUIRED!) <3
shtirl [24]

Answer: 9 Apples

Step-by-step explanation:

Given the following :

Total number of bags = 12

Mean of the distribution(m) = 8

Number of apples (x):

6 - - - - 7 - - - - 8 - - - - 9 - - - - 10

Frequency (f) :

1 - - - - 4 - - - - 2 - - - - 3 - - - - 1

Therefore :

Let number of apples in the 12th bag = y

Frequency of 12th bag : (12 - 11) = 1

Mean of distribution(m) :

Sum of ( f * x) / sum of f

Sum of (f * x) = (6*1)+(7*4)+(8*2)+(9*3)+(10*1)+(y*1)

Sum of (f * x) = (6+28+16+27+10+y) = 87 + y

Sum of f = 12

From :

m = Sum of ( f * x) / sum of f

8 = (87 + y) / 12

87 + y = 12 * 8

87 + y = 96

y = 96 - 87

y = 9

Number of apples in 12th bag is 9 apples

6 0
3 years ago
Write an equivalent series with the index of summation beginning at n = 1. ∞ (−1)n + 1(n + 1)xn n = 0
kkurt [141]

Looks like the starting series is

\displaystyle\sum_{n=0}^\infty\left((-1)^n+1\right)(n+1)x^n

Note the degree of the first few terms in the series, for n=0,1,2, are x^0,x^1,x^2, and so on.

So if the series were to start at n=1, we would need to preserve that pattern, and we do that by replacing n with n-1:

\displaystyle\sum_{n=1}^\infty\left((-1)^{n-1}+1\right)(n-1+1)x^{n-1}

Simplifying a bit, we end up with

\displaystyle\sum_{n=1}^\infty\left(1-(-1)^n\right)nx^{n-1}

7 0
3 years ago
Keith asked 30 people whether they knew how to play whist or dominoes. Fifteen of them knoew how to play whist and 20 knew how t
adelina 88 [10]
Ok so, 15 of them know how to play whist (I have no  idea what that is) and 20 of them know how to play dominoes, 5 of them do not. So, if you add up 20+15=35, take off 10 35-10=25 so it must mean that 10 is the answer. (Also if you add 5 to that 25+5=30)
The Answer is 10
7 0
3 years ago
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