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scoray [572]
3 years ago
5

What is the percent change of 7 increased to 21

Mathematics
1 answer:
timurjin [86]3 years ago
4 0

Answer:

300%

Step-by-step explanation:

21/7=3 This means that 21 is 3 times more than 7.

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A high school has 900 students. In a
postnew [5]

Answer:

135

Step-by-step explanation:

simply You're asked 15% of 900 so

900 x 15/100 =135

6 0
3 years ago
Liam works at a zoo. He was looking at some data showing the masses of their
serious [3.7K]

Median won't change, however Mean will fall by 180.

<h3>What do mean and median?</h3>

By summing all the numbers in a data collection and dividing by the total number of values in the set, one may get the mean (average) of the data set. When a data collection is sorted from least to largest, the median represents the midpoint value.

African elephants total 555 in number.

Elephants had a 3800 kg average mass.

Elephants had a 3600 kg median mass.

Lola, the elephant that was the smallest, weighed 2700 kg.

Later, Lola became really ill and lost a lot of weight, reaching a mass of 1800 kg.

What effect will Lola's weight loss have on the mean and median as well as Currently, the median is 3600 and the lowest is 2700.

now 2700 becomes 1800

so Median remains the same as 3600

No change in Median

The mean mass of the elephants was  3800 kg

=> total weight = 5 x 3800 = 19000 kg

2700 kg becomes 1800 kg

Hence new total mass = 19000 - 2700 + 1800 = 181000 kg

New Mean = 18100/5   = 3620  kg

Mean reduced by 3800 - 3620  = 180 kg

No change in Median weight

Mean reduced by 180 kg

To know more about mean and median click the link:

brainly.com/question/12528427

#SPJ1

4 0
1 year ago
What is true about a figure dilated by a scale factor of 1
motikmotik
Just something that is true or are there choices? If just something true then dialated by 1 is always the same as the original shape.
4 0
3 years ago
11x7/8 pls helpp i am so close from my test being over ty
Feliz [49]

Answer:

Exact Form:

77 /8

Decimal Form:

9.625

Mixed Number Form:

9  5 /8

Step-by-step explanation:

I AM SO SORRY IF THIS IS WRONG

3 0
3 years ago
Read 2 more answers
Find the LCM of 3,12,16​
maria [59]

Answer:

The lcm is 48. Hope this helps

7 0
3 years ago
Read 2 more answers
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