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3 years ago

Alecia earned 48 points on the first quiz and 45 points on the second quiz. What's the percent decrease in her quiz score ?

Mathematics

2 answers:

elixir [45]3 years ago

7 0

Answer:

is the 48 and 45 points out of 100?

dimulka [17.4K]3 years ago

6 0

Answer:

93%is the answer to this question its 93% percent (tell me if its wrong)

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Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a red card

joja [24]

Answer: $\dfrac{3}{51}$

Step-by-step explanation:

Given : The total number of cards in a deck = 52

Number of red cards = 26

There are two types of red cards : diamond and heart.

Number of diamond cards = 13

The probability that the first card is a diamond :-

$\dfrac{13}{52}=\dfrac{1}{4}$

Since diamond is also a red card.

Now, the total cards left = 51

The number of red cards left = 12

The probability that the second card is a red card (without repetition) is given by :-

$\dfrac{12}{51}$

Now, the probability of choosing a red card for the second card drawn, if the first card, drawn without replacement, was a diamond :-

$\dfrac{1}{4}\times\dfrac{12}{51}=\dfrac{3}{51}$

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3 years ago

Ann, Nan, and Jan snacked on a plate of fruit slices while doing their homework. Ann ate 1/5 of the fruit slices, Nan ate 2/5 of

Airida [17]

1/5 because 1/5+2/5+1/5=4/5 and out of a whole which would be 5/5, you would subtract 4/5 from 5/5

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3 years ago

Cos(A) = ?<br> 13/5<br> 12/5<br> 12/13<br> 5/13

ollegr [7]

Answer:

cosA = $\frac{5}{13}$

Step-by-step explanation:

cosA = $\frac{adjacent}{hypotenuse}$ = $\frac{AC}{AB}$ = $\frac{5}{13}$

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3 years ago

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Just took this test. It's B. $91.44

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3 years ago

Read 2 more answers

I need help i have turn it in like right now

zubka84 [21]

Answer:

The square root of 37 is √37 = 37 ½ = ± 6.082.

Step-by-step explanation:

The square root of 37 lies between the two perfect squares 36 and 49. √37 is irrational. Hope I helped :)

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2 years ago