All categories

3 years ago

on a 50 question test a student answer 5 questions worng incorrectly what percent did the student answer correctly

Mathematics

1 answer:

icang [17]3 years ago

3 0

90% because 50 - 5 is 45. 45 divided by 50 is .9 which is 90%

You might be interested in

Look at the following graph of the given equation. Determine whether the equation is a function. Explain why or why not.

Vadim26 [7]

The equation $y=2x+2$ is a function

Explanation:

Given that the graph contains the coordinates $(-1,0)$ , $(0,2)$ , $(1,4)$ and $(2,6)$

We need to determine whether the equation $y=2x+2$ is a function.

To determine the equation is a function, let us substitute the coordinates in the equation and check whether it satisfies the equation.

Let us substitute the coordinate $(-1,0)$ in the equation $y=2x+2$

Thus, we have,

$0=2(-1)+2$

$0=-2+2$

$0=0$

Thus, the coordinate $(-1,0)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(0,2)$ in the equation, we have,

$2=2(0)+2$

$2=2$

Thus, the coordinate $(0,2)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(1,4)$ in the equation $y=2x+2$

$4=2(1)+2$

$4=4$

Thus, the coordinate $(1,4)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(2,6)$ in the equation, we get,

$6=2(2)+2$

$6=6$

Thus, the coordinate $(2,6)$ satisfies the equation $y=2x+2$

Hence, the coordinates $(-1,0)$ , $(0,2)$ , $(1,4)$ and $(2,6)$ satisfies the equation $y=2x+2$

Thus, the equation $y=2x+2$ is a function.

6 0

4 years ago

A company sells two versions of an antivirus software. The home edition costs $23.50, and the business edition costs $58.75. Las

Kamila [148]

Answer:

x + y = 745

23.50x + 58.75y = 29,668.75

Step-by-step explanation:

Since 745 copies were sold and x represents the number of copies of the home edition sold and y represents the number of copies of the business edition sold:

x + y = 745

Since the home edition costs $23.50, and the business edition costs $58.75:

The money earned from home edition is = 23.50x

The money earned from business edition is = 58.75y

Since the company earned $29,668.75:

23.50x + 58.75y = 29,668.75

6 0

4 years ago

The following data represents the age of 30 lottery winners.

Veseljchak [2.6K]

Door key nhfsssrtgfrtgbkoooo your name and number of your name on the card number for you and the name is your

4 0

3 years ago

Read 2 more answers

In 2000, Mr. Lowery's investment was worth $850. Every year after that, the value of his investment decreased at a rate of $50 e

3241004551 [841]

Step-by-step explanation:

he lost $50 per year out of his investment

6 0

3 years ago

I don’t know how to do this problem

Cloud [144]

Conner's work is correct.

$(3^56^8)(3^96^{10})=(3^53^9)(6^86^{10})=3^{5+9}6^{9+10}=3^{14}6^{19}$

6 0

3 years ago