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anyanavicka [17]
3 years ago
12

cari is searchong o lonr for airline tickets. two weeks ago the cost to fly from Hartford to Orlando was $220. Now the cost is $

305. what is the percent increase? what would be the percent increase if the airline chargers and additional $50 baggage fee with the new ticket price?​
Mathematics
1 answer:
andriy [413]3 years ago
6 0

Answer:

I think it is 38.6%, sorry if I got it wrong.

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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 160 engines
abruzzese [7]

Answer:

Test statistic   Z = 2.1097

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that size of the sample 'n' = 160

Given that mean of the Population(μ)  = 5.3pounds/square inch

The Standard deviation of the population(σ) = 0.6

Mean of the sample(x⁻) = 5.4

Level of significance =0.1

<u><em>Step(ii):-</em></u>

Test statistic

    Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }

   Z = \frac{5.4-5.3}{\frac{0.6}{\sqrt{160} } }

  Z = 2.1097

<u><em>Final answer</em></u>:-

Test statistic   Z = 2.1097

5 0
3 years ago
Totally forgot how to do these?
PtichkaEL [24]
I’m just “answering” this because brainless told me to help out 4 ppl so
5 0
3 years ago
What is the domain of the function y= _X+6 - 7?
Tresset [83]

Answer:

we know that

The radicand  of the function must be greater than or equal to zero

so

the solution is the interval---------> [-6,∞)

therefore

the answer is

The domain are all values of x  greater than or equal to minus six

4 0
4 years ago
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45% of the beads in a box are blue. if there are 36 blue beads in the box, how many beads are there altogether ?
Pie
36÷0.45=80
There are 80 beads altogether
5 0
3 years ago
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In the expression 4×(2+6), how does having the 4× in front of the parentheses affect the overall value of the expresssion
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It is the multiplying factor for the whole equation if that makes sense.
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4 years ago
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