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3 years ago

100 POINTS ANSWER FAST

Mathematics

2 answers:

frutty [35]3 years ago

6 0

False is the answer i believe tried my best with this one >.< hopes this helps

Sergio039 [100]3 years ago

5 0

I got that is was false.

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A class of 33 students elected a class treasurer. there were 111votes for candidate a and 15 votes for candidate

Advocard [28]

Since 111 is greater than 33, I will assume that you meant 11 votes for a candidate. Also, assuming that each student can vote only once, the answer would be

11/33 x 100=33.333333...

About 33.333 of the voters voted for candidate a.

3 0

3 years ago

The average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?

Ray Of Light [21]

Answer:

The mean of 25 students is 17.6

Step-by-step explanation:

The formula of the mean (average) is mean (average) = $\frac{S}{N}$ , where S is the sum of the data, and N is the number of the data

∵ The average marks of the first 10 students are 17

- That means the mean is 17 and the number of students is 10

∴ Average = 17

∴ N = 10

∵ Average = $\frac{S}{N}$

- Substitute average by 17 and N by 10

∴ 17 = $\frac{S}{10}$

- Multiply both sides by 10

∴ 170 = S

∴ The sum of the marks of the first 10 students is 170

∵ The average of the next 15 students is 18

∴ Average = 18

∴ N = 15

- Substitute average by 18 and N by 15

∴ 18 = $\frac{S}{15}$

- Multiply both sides by 15

∴ 270 = S

∴ The sum of the marks of the next 15 students is 270

Now to find the mean of 25 students and the two sums and divide the answer by 25

∵ S = 170 + 270

∴ S = 440

∵ N = 25

∴ Mean = $\frac{440}{25}$

∴ Mean = 17.6

The mean of 25 students is 17.6

3 0

3 years ago

An equation was used to predict possible sales of phones for 6 months. The actual sales of phones are also listed. Actual sales

Ugo [173]

The residue in each case is the difference between actual and predicted sales. Thus:
55 - 40 = 15
150 - 150 = 0
325 - 300 = 25
510 - 500 = 10
800 - 780 = 20
1000 - 990 = 10
These add up to be:
15 + 25+ 10 +20 +10
= 80

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2 years ago

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An employee receives $200 the first week and receives an additional 10% for each of the following weeks. How much will they have

Delvig [45]

Answer:

200(1.10) to the 20 power.=$1345.499 rounded to nearest 10th is $1345.4

Step-by-step explanation: you start with $200 times 1.10 which represents one 10%. you will then set up the formula to the 20th power to shorten your steps which represents the 20 weeks the 10 % would be added. and your answer would be $1345.4 if you rounded it to the nearest 10th.

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2 years ago

Why does a flat piece of paper float to the ground while a crumpled ball of paper falls straight to the floor? Both pieces of pa

olasank [31]

Your answer is C. because the paper is open like a kite or planes wings so it will float. With the crumpled paper it will fall instantly because its not open and has more mass

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2 years ago

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