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earnstyle [38]
2 years ago
11

Kevin correctly answered 75% of 32 test questions.

Mathematics
2 answers:
alukav5142 [94]2 years ago
5 0

Part A:

.75 * 32 = 24.

Kevin answered 24 questions correctly.

Part B:

He would have to get 2 more questions correctly.

.80 * 32 = 25.6

You cannot have a decimal of a question, so you round it up to being 26.

26 - 24 = 2

likoan [24]2 years ago
3 0

Answer:

part a-24 questions

part b-2 or 3 more questions

Step-by-step explanation:

part a-to find the number, change the percent into a decimal (.75) and multiply (24)

part b-first find how many questions need to be right to get 80% (.80 times 32=25.6). then subtract by how many he would get with a 75% (25.6-24=about 2 to 3 more questions, rounded 2)

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3 years ago
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svp [43]

Answer:

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6 0
2 years ago
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SashulF [63]

Answer:

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Step-by-step explanation:

6 0
3 years ago
A jar contains six blue marbles and five red marbles. Suppose you choose a marble at​ random, and do not replace it. Then you ch
TEA [102]

The jar has 6+5=11 marbles.

We have to find the probability of the following event:

1.We pick a marble from a jar that has 11 marbles in total, 5 of them are red

2.We pick a marble from a jar that has now 10 marbles in total, 4 of them are red (because in the previous step we picked a red marble and did not put it back in the jar)

The probability of the first event is:

P_1=\frac{5}{11}

The probability of the second event is:

P_2=\frac{4}{10}=\frac{2}{5}

The probability of the both events to happen is:

P=P_1\cdot P_2=\frac{5}{11}\cdot \frac{2}{5}=\frac{2}{11}=0.1818

3 0
3 years ago
Help please. Im confused on what to do.
Paraphin [41]

Answer:

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4 0
3 years ago
Read 2 more answers
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