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3 years ago

At the book store books selling for 15$ are marked 10% off what is the discount? what is the sale price of each book

Mathematics

1 answer:

torisob [31]3 years ago

3 0

The saleprice is $13.5, so the discount is $1.5.

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I need help with these two questions please:) I need the answers fast ! Please and Thank You

Valentin [98]

Answer:

#1 is 9 times 10^15

#2 is 3 times 10^8

Step-by-step explanation:

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3 years ago

The graph shows a distribution of data. What is the standard deviation of the data? A)0.5 B)1.5 C)2.0 D)2.5

ruslelena [56]

Answer:

A)0.5

Step-by-step explanation:

We can see in the graph , that it is bell-shaped along x =2. A bell-shaped graph along one value is called symmetric graph and it represents a normal distribution.

Since, the give graph is symmetric around x=2, so the mean of the data is 2.

The point immediate left to the mean represents x-σ

so,

2 - σ = 1.5

So,

σ = 0.5

The sigma represents standard deviation.

Hence, Option A is correct ..

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3 years ago

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Will can jump rope at a rate of 8 jumps for every 10 seconds. find the unit rate

Andru [333]

Answer:

The unit rate is<u> 1.25 seconds per jump</u>.

Step-by-step explanation:

Given:

Will can jump rope at a rate of 8 jumps for every 10 seconds.

Now, to find the unit rate:

So, by dividing we get the unit rate.

At the rate of 8 jumps Will takes 10 seconds.

Thus, for the rate of 1 jump he will take = $10\div 8=1.25\ seconds.$

Therefore, the unit rate is 1.25 seconds per jump.

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3 years ago

Show your work .4+6 2/5=

Temka [501]

Answer:

52/5 or 10.2

Step-by-step explanation:

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3 years ago

PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER

kvv77 [185]

B. I am pretty sure is the right answer not sure but I think it is. Please give me brainliest!

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3 years ago

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