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Kobotan [32]
3 years ago
12

kelly answered 3 items on a test incorrectly. this was 6% of the items. How many items were on the test?

Mathematics
1 answer:
Delicious77 [7]3 years ago
7 0

Answer:

50

Step-by-step explanation:

This is my reasoning:

There were 100 questions she would have answered 6 incorrectly. We now that she answered 3 incorrectly so it must have been 50 questions.

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The data set shows the ages of the players of the soccer team. What is the most common age of the members of the team? Explain h
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Step-by-step explanation:

3 0
2 years ago
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In ΔSTU, s = 50 inches, t = 58 inches and u=27 inches. Find the measure of ∠S to the nearest 10th of a degree.
Mandarinka [93]

Step-by-step explanation:

By Cosine rule, we have

s² = t² + u² - 2(t)(u)(cosS)

=> cosS = (t² + u² - s²)/2tu

=> cosS = (58² + 27² - 50²) / (2 * 58 * 27) = 0.5086.

Therefore S = cos^-1(0.5086) = 59.4° (1d.p.)

4 0
3 years ago
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Please help with this
quester [9]

Answer:

Step-by-step explanation:

do it your self

6 0
3 years ago
Pls help with this ..its to be submitted this monday.....pls pls pls
Svet_ta [14]

Answer:

9pr = 2q^2

Step-by-step explanation:

28.

px^2 + qx + r = 0

If one root is A then the other root is 2A

We have A + 2A = -q/p   and A*2A = r/p

So 3A = -q/p  so A = -q/3p and  A^2  = r/2p  so A = √ (r / 2p)

Equating  these 2 equations:-

-q/3p =  √(r / 2p)

q^2 / 9p^2 = r / 2p

9p^2r = 2pq^2

9pr = 2q^2   (answer)


6 0
3 years ago
Angela is buying a dress that is on sale for 20% off. If the original price of the dress is $40.00, how much money is Angela sav
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The answer is D, 8$. One easy way to do it is to take 10% of 40, which is 4, and double it.
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3 years ago
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