MATHEMATICS HIGH SCHOOL

Darien could swim 30 laps anhour last year. This year he can
swim 36 laps an hour. Determine the
percent change
Darien could swim 30 laps an hour last year. This - 1

Answers

Answer 1
Answer:

Answer:

D

Step-by-step explanation:

If the percent change is 30 to 36 you can already see that it is an increase

here is the work

36 - 30

30

x 100% = 20%
Answer 2
Answer:

Answer:

20% increase, which corresponds to the light

Step-by-step explanation:

(y - x)/x * 100

(36 - 30)/30 * 100

(6 * 100)/30

600/30

20% increase

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How do you compute two thirds of 6 ounces what is two thirds of 6 ounces

I needs it the question asap

Answers

Answer:

The pink box

Step-by-step explanation:

Answer:

light blue is what i got not so sure if it right tho

:P

Step-by-step explanation:

The distribution of GPAs is normally distributed with a mean of 2.7 pounds and a standard deviation of 0.3. Approximately what percentage of students has GPAs above 3.0?

Answers

The best answer to this statistic question would be 15.7% or, if rounded off, 16%. This is because those students who have GPAs are approximately at least 1 standard deviation away from the mean and more - which means that 84% of the GPAs are less then 3 pounds. I subtracted 84 from 99.7 (which is the whole distribution's percentage) and came up with 15.7.

Antonio has read 147 pages of a book . He has completed 70% of the book.How many more pages does he need to read to finish the book?

Answers

Answer:

He needs to finish 63 pages.

Step-by-step explanation:

Let the total number of pages he has to read = x,

The percentage of the book he has finished = 70%,

Thus, the number of pages he has finished = 70% of 147,

=(70x)/(100)

According to the question,

(70x)/(100)=147

70x=14700

x=(14700)/(70)=210

Hence, the remaining pages he needs to read = total pages - pages which are finished

= 210 - 147

= 63

Answer:

63

Step-by-step explanation:

Need Geometry help... WILL AWARD BRAINLIEST!1. What is the value (ratio) of TAN A
A. 15/8
B.8/15
C. 15/17
D.8/17

2. What is the value ratio of COS A?
A. 15/8
B. 8/15
C. 15/17
D.8/17

3. What is the measure of angle A rounded to the nearest whole number?
A. 2 Degrees
B. 62 Degrees
C. 28 Degrees
D. 30 Degrees

4. What is the measure of ANGLE C rounded to the nearest whole number?
A. 47 Degrees
B. 2 Degrees
C. 28 Degrees
D. 30 Degrees

Answers

1. B
2. C
3. B
4. C
Hope this helps! :)
1. 15/8. I cannot solve the rest right now, yet I hope this helps.

Can someone please just tell me if I did this right? It’s the volume of a cone.

Answers

Answer:

If your asking for the equation: V=1/3*h*π*r²

Step-by-step explanation:

* = multiplication sign

h = height

r = radius

What is the result of isolating x^2 in the equation below?10x^2-36y^2=100

A. x^2=100+36/10 y^2
B. x^2=10+36/10 y^2
C. x^2=100+36 y^2
D. x^2=10+6/10 y^2

Answers

The result of isolating x² in the quadratic equation 10x² - 36y² = 100 will be x² = 10 + (36 / 10)y²

What is a quadratic equation?

A quadratic equation is an equation that has one or multiple variables with the highest power of the variable is 2.

The given quadratic equation is:

10x² - 36y² = 100

⇒ 10x² = 100 + 36y²

⇒ x² = (100 + 36y²) / 10

⇒ x² = 10 + (36 / 10)y²

Learn more about a quadratic equation here: brainly.com/question/2506855

SPJ2
B. you add 36y^2 to either side, giving you 10x^2=100+36y^2, and then divide the entire equation by 10, leaving you with x^2=10+36/10 y^2
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