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Blizzard [7]
4 years ago
5

Is 4 to 7 the same as 7 to 4? Explain why or why not.

Mathematics
2 answers:
Norma-Jean [14]4 years ago
6 0

No it is not the same,

Explanation:

You would have 4 things for every 7 people,

Does this make sense,  you would give 4 candy to 7 people, not 7 people to 4 candy.

Unless You say that you have 7 people for every 4 pieces of candy you

Studentka2010 [4]4 years ago
5 0
Cuz ur mom idk sorry
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Roland was driving to campus but realized that his car is out of gas. He started driving around Syracuse looking for a gas stati
tester [92]

Answer:

Roland is right, he can be 95% sure that average gas prices have gone up since the same time last year.

Step-by-step explanation:

Let μ be average gas price around Syracuse.

Then hypotheses are:

H_{0}: μ = $2.68

H_{a}: μ > $2.68

Then test statistic can be calculated as:

z=\frac{X-M}{\frac{s}{\sqrt{N} } } where

  • X  is the Roland's calculated average gas prices of 50 gas stations ($2.74)
  • M is the average average gas prices in the entire of Syracuse last year
  • s is the standard deviation ($0.11)
  • N is the sample size(50)

Then z=\frac{2.74-2.68}{\frac{0.11}{\sqrt{50} } } ≈ 3.86

Since P-value of test statistic ≈ 0.00006 <0.05  (significance level), we can reject the null hypothesis.

7 0
4 years ago
A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of
lys-0071 [83]

Answer:

Car 1 consumes 30 gallons of gas.

Car 2 consumes 20 gallons of gas.

Step-by-step explanation:

6 0
3 years ago
Can you help me find the answer for number 2
Viktor [21]

Here is the work along with the answer to the problem.

7 0
3 years ago
One card from a deck of cards Is selected, it's is replaced, and another card is chosen. What is the probability that the first
Elis [28]

Answer:

1/ 8

Step-by-step explanation:

Given that:

Number of red cards in deck = 26

Number of diamonds in deck = 13

Number of cards in deck = 52

Recall :

Probability = required outcome / Total possible outcomes

Probability of choosing a red :

P(red) = 26 / 52 = 1/2

With replacement :

Probability of diamond :

P(diamond) = 13 / 52 = 1/4

Hence,

Probability of first card red, then second card diamond equals

P(red) * P(diamond)

1/2 * 1/4

= 1/8

6 0
3 years ago
If the lines in a system of equations have different slopes and the same y-intercept, how many solutions does the system have?
allochka39001 [22]

Answer:

289819

Step-by-step explanation:

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3 years ago
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