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kherson [118]
3 years ago
9

Tisha has already written 2 pages, and she expects to write 2 pages for every additional hour spent writing. After spending 3 ho

urs writing this week, how many pages will Tisha have written in total? Write and solve an equation to find the answer.
___ pages
Mathematics
2 answers:
professor190 [17]3 years ago
7 0

Answer:

8

Step-by-step explanation:

x = 2n +2

where n is the number of hours. In this case n = 3 so x = 8

masya89 [10]3 years ago
4 0

2 + 2 (3)= pages

2 + 6 =pages

8 = pages

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kompoz [17]
Total is 45-5 = 40, because it starts at 5, tricky haha

Area in interest is 30-20 = 10

What percentage is 10 of 40?

10/40 = 0.25

0.25*100 = 25%

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2 years ago
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A distributor receives a large shipment of components. Thedistributor would like to accept the shipment if 10% or fewer ofthe co
posledela

Answer:

a. 0.2639 or 26.39%

b. 0.6242 or 62.42%

Step-by-step explanation:

This problem can be treated as a binomial model with probability of success p = proportion of defectives in the batch.

Number of trials (n) = 10.

For any number of successes 'k', the probability is:

P(X=k) = \frac{n!}{(n-k)!k!}*p^k*(1-p)^{n-k}

a. If p =0.10, what is P(x >1):

P(X>1) = 1- P(X=0)-P(X=1)\\P(X>1) =1- \frac{10!}{(10-0)!0!}*0.10^0*(1-0.10)^{10-0}- \frac{10!}{(10-1)!1!}*0.10^1*(1-0.10)^{10-1}\\P(X>1) = 1-0.348678-0.287420\\P(X>1) =0.2639

The probability is 0.2639 or 26.39%.

b. If p =0.20, what is P(x >1):

P(X>1) = 1- P(X=0)-P(X=1)\\P(X>1) =1- \frac{10!}{(10-0)!0!}*0.20^0*(1-0.20)^{10-0}- \frac{10!}{(10-1)!1!}*0.20^1*(1-0.20)^{10-1}\\P(X>1) = 1-0.107374-0.268435\\P(X>1) =0.6242

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5 0
3 years ago
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olga55 [171]

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The first one is not equivalent. The second one is equivalent.

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