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gavmur [86]
3 years ago
12

Terrance decorates T-shirts to sell. He spends $200 on 100 T-shirts that he sells for

Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

Step-by-step explanation:

He make 420 dollar off them 70 shirts

Yuki888 [10]3 years ago
7 0

Answer:

$220

Step-by-step explanation:

$200/100 = 2

Thus each shirt is $2

$70 x $6 = $420

He gets $420 for the shirts he sells

$420 - $200 = $220

The total amount of shirts he sells ($420) minus how much he payed for all the shirts ($200) equals the answer; $220

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How to use techniques of adding the additive inverse and multiplying by the  Students use algebra to solve equations (of the form px + q = r and p(x + q) = r where p pay with a $10 bill and receive no change, then how much did each bottle of a. If Allen buys 4 uniform shirts at one time, he gets a $10 discount so that the

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cluponka [151]

Answer:

Step-by-step explanation:

Um... there is no "Lorenzo's scores."

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3 years ago
Can anyone help with this question
4vir4ik [10]

Answer: A) x=6

Step-by-step explanation: my trick that i do with these questions are to just fill in the x's with the different choices that they give you.

so... first try out 6. fill in every x with a 6. so now, x isn't x anymore, it's 6.

(8-6)=2

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this means that x would equal 6

if that first one doesn't work, try out the other ones. but this one works, so we know we have the right answer. i hope this helps with this problem, and i hope it helps with other problems like this too.

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3 0
3 years ago
Wind farm configuration is a significant issue as the upwind turbines generate maximal energy while creating wakes for downwind
lord [1]

Answer:

a) [24.114,29.2858]

b) Since 30 is not in the 95% confidence interval, there is a 95% probability that 30 is not the true mean WEP

Step-by-step explanation:

a)

The 95% confidence interval is given by the interval

\bf [ \bar x-z^*\frac{s}{\sqrt n}, \bar x+t^*\frac{s}{\sqrt n}]

where

\bf \bar x= 26.7 is the sample mean  

s = 17.7 is the sample standard deviation  

n = 180 is the sample size

Since the sample size is big enough, we can use the Normal N(0,1) to compute \bf z^* and it would be 1.96(*) (a value such that the area under the Normal curve outside the interval [-z, z] is 5% (0.05))

and our 95% confidence interval is

\bf [26.7-1.96*\frac{17.7}{\sqrt{180}}, 26.7+1.96*\frac{17.7}{\sqrt{180}}]=\boxed{[24.114,29.2858]}

(*)

This value can be computed in Excel with

<em>NORMINV(1-0.025,0,1)</em>

and in OpenOffice Calc with

<em>NORMINV(1-0.025;0;1)</em>

b)

Since 30 is not in the 95% confidence interval, there is a 95% probability that 30 is not the true mean WEP

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valina [46]
$391 ÷ 68 = $5.75 x 100 = $575
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3 years ago
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