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densk [106]
3 years ago
9

In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the num

ber of books they read?
A. 5% decrease
B. 15% increase
C. 25% increase
D. 25% decrease​
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0
25% decrease because if you multiply 20x.25 you get 5 and you minus the 5 from 20 books and you get 15 books
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The histogram shows the prices for six-packs of adult socks and six-packs of kid socks at a store. What is true about the variab
Agata [3.3K]

Answer:

a. There is more variability in the prices of kid socks because they have a greater range.

Step-by-step explanation:

A measure of variability is a summary statistic that represents the amount of dispersion in a dataset. Common examples are range, interquartile range (IQR), variance, and standard deviation.

From the histogram

Highest Number of Packs of Adult Socks = 7

Lowest Number of Packs of Adult Socks = 5

Range = 7 - 5 =2

Highest Number of Packs of Kid Socks = 7

Lowest Number of Packs of Kid Socks = 4

Range = 7-4 = 3

We conclude that there is more variability in the prices of kid socks because they have a greater range.

The correct option is A.

8 0
3 years ago
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hodyreva [135]
Set up a proportion.
Let x = the number of students in 29970 who speak 3 or more languages.

285/19 = 29970/x Cross multiply
285 x = 19 * 29970
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x = 569430/285
x = 5415 students speak 3 languages.
4 0
3 years ago
Find the price of each product after a discount is applied. A game system costs 199.75 with a discount rate of 18%.
Vika [28.1K]
So if 199.75 is the cost after a 18% discount

The original price is 100%
Then the price after a 18% discount is
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8 0
2 years ago
Read 2 more answers
Determine if true:<br> 24+24-8x2=80
Savatey [412]
Answer:true

Explanation:
24+24=48
48-8=40
40x2=80
80=80!

So it is true.
5 0
2 years ago
PLSSS HELP ASAPPP I'LL GIVE YOU BRAINLIEST IF I GET IT RIGHT!!!​
kondor19780726 [428]

Answer:

D. 76

Step-by-step explanation:

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3 0
2 years ago
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