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monitta
2 years ago
6

Help Plsssss middle school math

Mathematics
2 answers:
Inga [223]2 years ago
7 0

Answer:

99

Step-by-step explanation:

Add up total amount of votes

4+11+8+7 = 30

270/30 = 90

Set up ratio

11/30 = x/270

cross multiply

30x = 2970

divide both sides by 30 to get x by itself

x = 99

Burka [1]2 years ago
3 0

Answer:

99 votes for ice cream

Step-by-step explanation:

4 + 11 + 8 + 7 = 30

270/30 = 9

to find the predictions multiply the votes by 9

ice cream has 11 votes

11 * 9 = 99

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3 years ago
The measurement of the height of 600 students of a college is normally distributed with a mean of
ioda

Answer:

68

Step-by-step explanation:

We let the random variable X denote the height of students of the college. Therefore, X is normally distributed with a mean of 175 cm and a standard deviation of 5 centimeters.

We are required to determine the percent of students who are between 170 centimeters and 180 centimeters in height.

This can be expressed as;

P(170<X<180)

This can be evaluated in Stat-Crunch using the following steps;

In stat crunch, click Stat then Calculators and select Normal

In the pop-up window that appears click Between

Input the value of the mean as 175 and that of the standard deviation as 5

Then input the values 170 and 180

click compute

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3 years ago
Find the value of x. Round your answer to the nearest tenth.
o-na [289]
Answer should be 4


Explanation: 30 divided by 8 = 3.75

3.75 rounded is 4
5 0
2 years ago
PLEASE HELP ME ANSWER QUESTION #1 and #2
BARSIC [14]

150 divided by 50 equals the amount of time it took her to drive there

3 hours

This is the answer because 150 divided by 5 equals 3 and more simply 50 + 50+ 50= 150

3 0
3 years ago
A farmer has 9 2/5 acres of land. If he sells 1 1/3 acres to his neighbor, how many acres of land does he have left?
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4 0
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