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BabaBlast [244]
3 years ago
11

Bryce read 15 books last year. this year he read 21. what was the percent increase?

Mathematics
1 answer:
tangare [24]3 years ago
5 0

Answer:

40

Step-by-step explanation:

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Please help me i really need help with this math
natima [27]

Answer:

y= 3/5x+ 6.2

Step-by-step explanation:

the slope is change in y over change in x.

-4-(-1) divided by 3-8 will be -3/-5 = 3/5

For the y-intercept, plug in x and y values. I will use (3,8).

8= 3/5(3)+b

8= 9/5+b

(subtract 9/5 from both sides)= 6 and 1/5 or 6.2 as a decimal.

6 0
3 years ago
A grocery store chain has been tracking data on the number of shoppers that use coupons. the data shows that 71% of all shoppers
sashaice [31]

The confidence interval comes out to be (0.685,0.735).

Calculating the Confidence Level and Other Terms

The confidence level can be calculated as follows,

z = \frac{36}{40} * 100%%  

z = 90 %

The margin error is given as, E= 0.025

The p value in this case is 0.71

Calculating the Confidence Interval

The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval. Within a specific level of confidence, this is the range of values you anticipate your estimate to fall within if you repeat the test.

Confidence interval can be obtained by using the following formula,

(p-E, p+E) = (0.71-0.025, 0.71+0.025).

Therefore, the confidence interval is (0.685, 0.735).

Learn more about confidence interval here:

brainly.com/question/24131141

#SPJ4

3 0
1 year ago
PLEASE ANSWER ASAP!!!
qwelly [4]

Answer:

D, E

Step-by-step explanation:

It’s not A because the equation can not be any pair of numbers.

It’s not B because that is stupid logic.

It’s not C because (3,4) and (10,8) don’t work

It’s not F because there is 1 solution

5 0
3 years ago
What is the midpoint of 10 and 20
erica [24]

Answer:

15

Step-by-step explanation:

Simply subtract the smaller number from the bigger number, and divide by 2. Or add the two numbers together and divide by 2.

6 0
2 years ago
Read 2 more answers
Unit 2 Cumulative Assessment
NikAS [45]

Answer:

The coefficient of x is 22.

6 0
3 years ago
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