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3 years ago

5

Bob was able to complete 4 party invitations in 15 minutes at this rate how long in hours will it take him to complete 18 invita

tions

2 answers:

Olegator [25]3 years ago

4 0

Answer:

1hr 7½mins to complete 18 invitations *I think.

crimeas [40]3 years ago

3 0

Answer:

67.5

Step-by-step explanation:

Okay, 4-15

15/4 is 3.75

1-3.75

I think this is right sorry if not

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Gekata [30.6K]

I believe that the answer to the first question is B because you can but 5 cans of beans and 4 cans of tuna in each basket. The answer to the second question is D.

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3 years ago

Read 2 more answers

A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found tha

egoroff_w [7]

Answer:

Between 21 years and 75 years

Step-by-step explanation:

Given that a real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years.

X the ages of home buyers is N(48, 9)

a) $30\leq x\leq 66\\|x-48|\leq 18\\|x-48|\leq 2\sigma$

Hence using Cheby chev inequality

$P(|x-48|\leq 2\sigma)\geq 1-\frac{1}{2^2} \\=0.75$

b) $25.5\leq x\leq 70.5\\|x-48|\leq 22.5\\|x-48|\leq 1.5\sigma$

$P(|x-48|\leq 1.5\sigma)\geq 1-\frac{1}{1.5^2} \\=0.556$

c) Using normal distribution we have

$P(|x-48|\leq 2\sigma)=0.95$

d) z value is 2.97

Hence x lies between

$(48-9*2.97, 49+9*2.97)\\=(21.27,74.73)$

Between 21 years and 75 years

4 0

3 years ago

Complete the reasons for the proof (please help this makes no sense and i just need to finish this assignment)

wariber [46]

I hated doing that stuff, it was a pain for me

6 0

3 years ago

A recipe calls for 2 cups of water for every 3 cups of flour. How much water is needed if you use 12 cups of flour?

Tju [1.3M]

Answer:

8 cups of water

Explanation:

2 cups of water = 3 cups of flour

x cups of water = 12 cups of flour

12/3=4

2x4=8

6 0

3 years ago

Is 4/16 equivalent to 3/5

azamat

No, as if you reduce 4/16 it is 1/4, not 3/5, therefore they are not equivalent.

7 0

3 years ago