All categories

2 years ago

You scored 80 points on your first math test. On the next test you scored 96 points. What is the percent increase?

Mathematics

1 answer:

Tom [10]2 years ago

5 0

Answer:

20%

Step-by-step explanation:

96-80/80 *100

16/80*100

1/5*100 =20

You might be interested in

In the diagram, the measures of angle 3 and angle 6 are 50 degrees. The measure of angle 5 is 130 degrees. Are lines c and d par

Virty [35]

9514 1404 393

Answer:

Step-by-step explanation:

Angles 3 and 6 are "alternate interior" angles. When those angles are congruent, as these are, then the lines crossed by the transversal are parallel.

We expect angles 5 and 6 to be supplementary because they are a linear pair. That fact says nothing about the relationship of line d to line c.

7 0

2 years ago

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean $(\mu)$ = 500 and a standard deviation $(\sigma)$ = 100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = $\dfrac{Y-\mu}{\sigma}$

Z-score = $\dfrac{625-500}{100}$

⇒ Z-score = $\dfrac{125}{100}$

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0

3 years ago

Show the working for <br><br> 3y^2 x 2y^5 x 5y^4 over 6y^3 x 4y^4

solong [7]

Answer:

please I can't do it I have not been thought

6 0

2 years ago

6.75 + StartFraction 3 Over 8 EndFraction x = 13 and one-fourth

amid [387]

Easy the answer is B: 17 and one-third

3 0

3 years ago

Read 2 more answers

Find the leg of each isosceles right triangle when the hypotenuse is 5 square root 6

kozerog [31]

Hypotenuse = 5√6

Let the length of each leg be x, since it is Isosceles .

x² + x² = (5√6)²

2x² = (5 * 5 * √6 * √6)

2x² = 150

x² = 150/2

x² = 75

x = √75

x = √(25 * 3)

x = √25 * √3

x = 5√3

5 0

3 years ago