A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions answered correctly?

Answers

Answer 1

Answer: Steps:

1. First, divide 82 by 100, since this is what you would have originally gotten with the ratio.
82 ÷ 100 = 0.82

2. Then multiply it by 50 (since this is how many questions were on the test)
0.82 × 50 = 41 <----- (the number of questions answered correctly)

3. Now that you have the two numbers you need, you can assemble the ratio.

Answer: 41/50

Hope I Helped! <3

Answer 2

Answer: There will be 41% the method is like this the total paper marks was 100% and there was 50 question first divide 100 divided into 50 you will get 2 as the answer then 2 divided into 82% the answer will be 41%

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Solve for x: 25x2 − 36 = 0

Answers

$25x^2-36 = 0 \n\n(5x)^2-6^2=0\n \n(5x-6)(5x+6)=0\n \n5x-6=0 \ \ or \ \ 5x+6=0\n \n5x=6 \ \ or \ \ x=-6\n \nx=(6)/(5) \ \ or \ \ x=-(6)/(5) \n \n \n a^2-b^2 =(a-b)(a+b)$

$25x^2-36=0$

$25x^2=36$

$x^2=(36)/(25)$

$x=\sqrt{(36)/(25)}$ $or$ $x=-\sqrt{(36)/(25)}$

$x=(√(36))/(√(25))$ $or$ $x=-(√(36))/(√(25))$

$x=(6)/(5)$ or $x=-(6)/(5)$

$x=1(1)/(5)$ or $x=-1(1)/(5)$

Which expression is equivalent to -14-(-2)?
14-2
O 14+2
0 -14+2
14-2

Answers

Answer:

-14 +2

Step-by-step explanation:

because you would do kcc aka keep change change

you would keep -14 change the minus to a addition sign and change the -2 to a positive 2

How do you solve, 7/9+1/2-3/2+2/9 ?

Answers

$(7)/(9)+ (1)/(2)-(3)/(2)+(2)/(9)=\n \ntheir \ lcd \ is \ 18\n \n = (14)/(18)+ (9)/(18)-(27)/(18)+(4)/(18)=(14+9-27+4)/(18)= 0$

If u add them all u will get 0

A single die is rolled twice. Find the probability of rolling an Odd number the first time and a number greater than 4 the second time.

Answers

The probability of rolling an odd number the first time and a number greater than 4 the second time is 1/6

The sample space of a single die is

$\mathbf{S = \{1,2,3,4,5,6\}}$

So, the total sample is 6

The odd numbers are

$\mathbf{Odd = \{1,3,5\}}$ --- 3 odd numbers.

So, the probability of selecting an odd number is:

$\mathbf{P(Odd) = \frac 36}$

Simplify

$\mathbf{P(Odd) = \frac 12}$

The numbers greater than 4 are

$\mathbf{Greater = \{5,6\}}$ --- 2 numbers greater than 4.

So, the probability of selecting a number greater than 4 is:

$\mathbf{P(Greater) = \frac 26}$

Simplify

$\mathbf{P(Greater) = \frac 13}$

The probability of rolling an odd number the first time and a number greater than 4 the second time is calculated as follows:

$\mathbf{P = P(Odd) * P(Greater)}$

So, we have:

$\mathbf{P = \frac 12 * \frac 13}$

$\mathbf{P = \frac 16}$

Hence, the probability is 1/6

Answers

Answer:

The correct answer is yes, we can draw an isosceles triangle with only one 80° angle. NO this is not the only possibility.

Step-by-step explanation:

A triangle is a three sided figure. There are three types of triangles: Equilateral, Isosceles and Scalene triangle. The sum of angles in a triangle is 180°.

If all sides have equal length then it is an equilateral triangle. All angles of this triangle are equal.

If two sides are equal then it is an isosceles triangle. Two opposite angles are equal.

If none of the angles and sides are equal then we call it a scalene triangle.

Given one angle of the triangle is 80°.

There exists two possibilities. One, 80° is the equal angle and 80° is not the equal angle.

Required Case : 80° is not the equal angle, i.e. only one 80° angle.

We are to draw an isosceles triangle (say ABC) with one angle say ∠A as 80°.

Other two angles (∠B and ∠C) are 50° each as the other two angles are supposed to be equal. ( $(180-80)/(2)$ °).

Now let us consider side AB and AC be of length say a. These two sides are equal.

Thus now we have successfully constructed an isosceles triangle with only one 80° angle.

We can get infinitely many isosceles triangle by just varying the length of the equal side.

At a store 4 out of every 5 customers make a purchase what percent of costumers make a purchase pleas include steps

Answers

Answer: 80%

Step-by-step explanation: In the store every 4 out of 5 costumers purchase an product.

If you multiply numbers by 20, you get the demoninator to be 100, which then you can get the percentage by finding 4x20=80.

Therefore, converted, 4/5=80%.

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