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grigory [225]
2 years ago
11

Can someone help me with these 2 questions please 100% correct only

Mathematics
1 answer:
marin [14]2 years ago
5 0

The first one is h+(h+2.5)=22

The second one is w(w+8)=48


not sure about the second one but the first one I am 100% sure about.

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I buy T stamps at Q cents each, S stamps at R cents each, and give the post-office clerk one dollar. If P = 8, Q = 7, R = 5, S =
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2 years ago
What is the domain of the relation?<br> ​
Tasya [4]

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3 years ago
Consider the population consisting of all computers of a certain brand and model, and focus on whether a computer needs service
eimsori [14]

Answer and explanation:

A. What is the probability that more than half of the sample of 100 computers would need warranty service?

What is the probability that more than half of the sample of 100 computers would not need warranty service?

What is the probability that out of sample of 100 more than 20% would require warranty service?

B. If our sample of 100 computers of that brand and model reveals that 30 computers need warranty service, does this give a valid conclusion that all such computers in the population would require about 30% warranty service or less?

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3 years ago
I’ve done this 3 different way and I’m still getting it wrong someone help I feel dumb
Olegator [25]
<h3>Answer: 13,011.11 dollars</h3>

note: remember to take the comma out or ignore it. I put it in there to help make the number more readable

===========================================

Explanation:

Let x be the value of the sale in dollars.

x-1900 represents the leftover amount that is over 1900

eg: if x = 2200, then x-1900 = 2200-1900 = 300 is the the leftover amount

taking 9% of (x-1900) leads to the expression 0.09(x-1900) and this expression must be 1000 since this is the extra amount of money the salesman needs (he already has $1000 in base pay)

-------------

Solve for x

0.09(x-1900) = 1000

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x-1900 = 11,111.11111 approximately

x = 11,111.11111 + 1900

x = 13011.1111

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3 years ago
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