3 years ago

Sam had $145 to spend on six books after buying them he had $13 how much did each book cost

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

7 0

Answer:

The answer is 24.166666667.

Step-by-step explanation:

145 divided by 6 is 24.166666667.

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(b^4)^2 ???????????????

Bogdan [553]

Answer:

b^8

Step-by-step explanation:

3 0

3 years ago

Isaac shoveled 9 of his neighbors' driveways after a snow storm. He charged $25 for a short driveway and $45 for a long driveway

e-lub [12.9K]

Answer:

y($) = 405- 20x

Step-by-step explanation:

Number of short driveways = x

Number of long driveways = 9-x

Fee per long driveway = $45

Fee per short driveway= $25

Total amount = y

y ($) = 25x + 45 (9-x)

= 25x + 405 -45x

= 405- 20x

5 0

3 years ago

A group of eight people are attending the movies together.

sveta [45]

Answer:

I think A

Step-by-step explanation:

4 0

3 years ago

X − 5 = 17<br> A) x = 22 <br> B) x = 12 <br> C) x = 3.4 <br> D) x = -12

Maksim231197 [3]

A is the correct answer coz if you substitute 22 in the place of X-5 the answer will be 17

8 0

3 years ago

A population of values has a normal distribution with μ = 158.9 μ = 158.9 and σ = 90.4 σ = 90.4 . You intend to draw a random sa

rosijanka [135]

Answer:

$P_{39}=133.68$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 158.9

Standard Deviation, σ = 90.4

We are given that the distribution is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.39

$P( X < x) = P( z < \displaystyle\frac{x - 158.9}{90.4})=0.39$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 158.9}{90.4} = -0.279\\\\x = 133.6784\approx 133.68$

$P_{39}=133.68$

133.68 separates the bottom 39% means from the top 61% means.

7 0

3 years ago