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allsm [11]
2 years ago
5

The goal of a benefit concert is to collect 50,000 cans of food. Food is collected at each entrance to the concert.

Mathematics
1 answer:
Alex2 years ago
4 0

Answer:

C, the concert collected 13,204 more than desired

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An office building rents for $40,000 the first year, then increases by 0.5% each year. Use summation notation to represent the t
Sholpan [36]
Given the initial rent is $40000, and the rent is increased by 0.5% each year, the rent in the third year will be given by:
FV=P(1+r)^n
FV=40000(1.05)^n
Thus the answer  for the sum of payments for 3 years will be:
The summation is 1.05 raised to n years times  $40000, where the years is from 0 to 3.
4 0
2 years ago
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A simple random sample (SRS) of 100 of a certain popular car in 1997 found that 20 had a certain minor defect in the brakes. An
densk [106]

Answer: The required interval is (0.679, 0.821).

Step-by-step explanation:

Since we have given that

n_1=100\\\\p_1=20\\\\n_2=400\\\\p_2=50

So, the proportions would be

\hat{p_1}=\dfrac{p_1}{n_1}=\dfrac{20}{100}=0.2\\\\\hat{p_2}=\dfrac{p_2}{n_2}=\dfrac{50}{400}=0.125

So, At 90% confidence interval, the z score value would be

z = 1.65

and the hypothesis are :

H_0:\hat{p_1}-\hat{p_2}=0\\\\H_1:\hat{p_1}-\hat{p_2}\neq 0

So, the 90% confidence interval would be

(\hat{p_1}-\hat{p_2})\pm z\sqrt{\dfrac{\hat{p_1}(1-\hat{p_1}}{n_1}+\dfrac{\hat{p_2}(1-\hat{p_2})}{n_2}}\\\\=(0.2-0.125)\pm 1.65\sqrt{\dfrac{0.2\times 0.8}{100}+\dfrac{0.125\times 0.875}{400}}\\\\=0.075\pm 1.65\times 0.0433\\\\=(0.75-0.0714,0.75+0.0714)\\\\=(0.679,0.821)

Hence, the required interval is (0.679, 0.821).

5 0
2 years ago
George bought 9 apples that cost 50 cents each.
Natasha2012 [34]
He has 9 apples so we add .50 cents 9 times.
If we count this money-wise we would get 4.50, so if he paid with a $5 bill he would recieve 50 cents
4 0
2 years ago
Plz help ASAP, tysm! Plz show ur work!
anygoal [31]

Answer:

Step-by-step explanation:

Given 3x - 2y = 0, which can be re-written as 3x = 2y, find the intercepts.

y-intercept:  let x = 0 and find y.  y = 0.  So the y-intercept is (0, 0).

x-intercept:  let y = 0 and find x.  The x-intercept is (0, 0) also.

4 0
2 years ago
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Two objects are moving along separate linear paths where each path is described by position, d, and time, t. The variable d is m
Maru [420]
I am not sure about this but here goes nothing: d=2.5t+2.2 is very familiar to y=mx+b y=d m=2.5 x=t b=2.2 to find a new quasion we substitute d and t into place wich equals 1=2.5(0)+b simplification and you get b=1 so your answer is d=2.5t+1
8 0
2 years ago
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