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torisob [31]
3 years ago
13

To win a trivia game, Negan must score 90 points. Each correct answer is worth 1 3 over 4 points, and each incorrect answer is w

orth -1 over 4, if he gets 58 questions correct and 22 questions incorrect, does Nevan win? How many points does he score?
Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

 Nevan won the game.

 He scored 183 points.

Explanation:

  Correct answer is worth 13/4 points

  Incorrect answer is worth -1/4 points.

  Number of correct answers = 58

  Number of incorrect answers = 22

  Point scored =58*\frac{13}{4} +22*\frac{-1}{4} =\frac{732}{4} =183

  Points need to win = 90 points

  Point scored, 183 >Points need to win, 90

  So, Nevan won the game.

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A box is filled with 3 yellow cards, 2 blue cards, and 7 brown cards. A card is chosen at random from the box. What is the proba
Otrada [13]

We need to find the probability of the card chosen at random is yellow or brown.

So, since there are 3 yellow cards and 7 brown cards, the total numbers of cards that are yellow or brown is:

3+7=10

Now, the probability that the chosen card is yellow or brown can be found by dividing the above value by the total number of cards in the box.

The total number of cards in the box is:

3+7+2=12

Thus, that probability is given by:

\frac{10}{12}=\frac{10\div2}{12\div2}=\frac{5}{6}

Therefore, the answer is:

\frac{5}{6}

3 0
1 year ago
the measure of one side of a square is (s + 3) inches long. which pair of expressions both represent the perimeter of this squar
Akimi4 [234]
An expression could be 4(s+3). Hope it helps! :)
4 0
2 years ago
Read 2 more answers
Factor the expression 49b²-36​
Travka [436]

Answer:

49b² - 36

Step-by-step explanation:

Find the factors of 49 & 36:

49 = 1, 7, 49

36 = 1, 2, 6, 18, 36

As you can tell, there are no common factors (1 does not count), therefore, the expression given is already in most factored form.

49b² - 36 is your answer.

~

7 0
3 years ago
−2x=x2−6 Rewrite the equation by completing the square.
V125BC [204]

Answer:

(x + 1)² = 7

Step-by-step explanation:

Given:

-2x = x² - 6

We'll start by rearranging it to solve for zero:

x² + 2x - 6 = 0

The first term is already a perfect square so that's fine.  Normally, if that term had a non-square coefficient, you would need to multiply all terms a value that would change that constant to a perfect square.

Because it's already square (1), we can simply move to the next step, separating the -6 into a value that can be doubled to give us the 2, the coefficient of the second term.  That value will of course be 1, giving us:

x² + 2x + 1 - 1 - 6 = 0

Now can group our perfect square on the left and our constants on the right:

x² + 2x + 1 - 7= 0

x² + 2x + 1 = 7

(x + 1)² = 7

To check our answer, we can solve for x:

x + 1 = ± √7

x = -1 ± √7

x ≈ 1.65, -3.65

Let's try one of those in the original equation:

-2x = x² - 6

-2(1.65) = 1.65² - 6

- 3.3 = 2.72 - 6

-3.3 = -3.28

Good.  Given our rounding that difference of 2/100 is acceptable, so the answer is correct.

6 0
3 years ago
30 children are going on a school trip
Kruka [31]
30 × 5 = 150

150 - 110 = 40

40 ÷ 2 = 20

So 20 kids brought their own lunch

Hope this helped. Have a great day!

8 0
3 years ago
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