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Kisachek [45]
3 years ago
10

3(8×10)+5(20+2-15)? show work

Mathematics
2 answers:
kykrilka [37]3 years ago
6 0

Answer:

always do the numbers in the parentheses first. so do 8 x 10 = 80 and 20+2-15 = 7. Then add 3 to make 83. 5+ 7 = 12. the answer is 95

Step-by-step explanation:

katrin2010 [14]3 years ago
4 0

Answer:

275

Step-by-step explanation:

3(8×10)+5(20+2-15)

=3(80)+5(7)

=240+35

=275

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4 years ago
A bag contains 6 red apples and 5 yellow apples. 3 apples are selected at random. Find the probability of selecting 1 red apple
tester [92]

Answer:  The required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

Step-by-step explanation:  We are given that a bag contains 6 red apples and 5 yellow apples out of which 3 apples are selected at random.

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Let S denote the sample space for selecting 3 apples from the bag and let A denote the event of selecting 1 red apple and 2 yellow apples.

Then, we have

n(S)=^{6+5}C_3=^{11}C_3=\dfrac{11!}{3!(11-3)!}=\dfrac{11\times10\times9\times8!}{3\times2\times1\times8!}=165,\\\\\\n(A)\\\\\\=^6C_1\times^5C_2\\\\\\=\dfrac{6!}{1!(6-1)!}\times\dfrac{5!}{2!(5-2)!}\\\\\\=\dfrac{6\times5!}{1\times5!}\times\dfrac{5\times4\times3!}{2\times1\times3!}\\\\\\=6\times5\times2\\\\=60.

Therefore, the probability of event A is given by

P(A)=\dfrac{n(A)}{n(S)}=\dfrac{60}{165}=\dfrac{4}{11}\times100\%=36.36\%.

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3 years ago
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Zielflug [23.3K]

Answer:

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Step-by-step explanation:

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neonofarm [45]
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Now, strike off one number from each side (so 0, then 6, then 0, then 5) until you are only left with one or two numbers.

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7 0
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Read 2 more answers
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Answer:

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