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Mkey [24]
2 years ago
6

Chloe earned a grade of 87% on her multiple choice math final that had a total of 200

Mathematics
2 answers:
JulijaS [17]2 years ago
7 0

200 x 0.87 = 174

She answered 174 questions correctly.

7nadin3 [17]2 years ago
3 0

Answer:

Chloe answered <u>174</u> problems correctly.

Explanation:

To find percentage, you would multiply the percentages decimal to the total.

<u>0.87x200=174</u>

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andrew-mc [135]

Answer:  The required probability is 0.26.

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Since the marbles are picked up without replacement, so it is a situation of combination.

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So,

n(S)=^{100}C_{10}=\dfrac{100!}{10!(100-10)!}=\dfrac{100!}{10!90!}=17310309456440,\\\\\\n(E)=^{60}C_6\times^{40}C_4=\dfrac{60!}{6!54!}\times\dfrac{40!}{4!36!}=50063860\times91390.

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3 years ago
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