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Doss [256]
2 years ago
12

Anybody know the answer to this problem be correct

Mathematics
1 answer:
REY [17]2 years ago
8 0

Answer:

28 out of 40

2(20 - x)/40 for x questions wrong

Step-by-step explanation:

total points: 40

total Qs: 20

20-6 = 14

14/20 = 28/40

28

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6 pencils cost 54p how much will 8 pencils cost? <br><br> can you please show me the working out..
Paraphin [41]
Well first you have to find the unit rate, or how many "p" each pencil costs. So you take 54 and divide it by 6, and you get 9. So each pencil costs 9 p, so you take 9 and multiply it by 8. That gets you 72, so 8 pencils cost 72p.
7 0
3 years ago
Read 2 more answers
Help please? anyone?
Murljashka [212]

Answer:

with what

Step-by-step explanation:

6 0
3 years ago
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The heights of 1000 students at a local school were recorded and found to be approximated by the normal curve below. Which answe
Vlada [557]

Answer:

The mean of the distribution of heights of students at a local school is 63 inches and the standard deviation is 4 inches.

Step-by-step explanation:

The normal curve approximating the distribution of the heights of 1000 students at a local school is shown below.

For a normal curve, the mean, median and mode are the same and represents the center of the distribution.

The center of the normal curve below is at the height 63 inches.

Thus, the mean of the distribution of heights of students at a local school is 63 inches.

The standard deviation represents the spread or dispersion of the data.

From the normal curve it can be seen that values are equally distributed, i.e. the difference between two values is of 4 inches.

So, the standard deviation is 4 inches.

7 0
2 years ago
I don't get this question or the clue here it is " my age is 10 more than one tenth of one tenth of one tenth of 3,000 what is m
Blababa [14]
13 is the answer. So, 1/10 of 1/10 of 1/10 of 3,000 is 3, +10= 13.
5 0
3 years ago
14. The table shows the survey results of exercises
Akimi4 [234]

Answer:

Answers in the question are A, B, and E.

The answers to the table are:

         yes     no     total

yes:     12      25      37

no:      12       6        18

total:   24      31       55

Hopefully this helped, sorry if I was too late :)

3 0
2 years ago
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