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melamori03 [73]

2 years ago

9

Sumin bought a pen and a book for $x. the pen cost $5. (a) express the cost of the book in terms of x. (b) if x = 11, find the c

ost of the book. (c) if x = 15, find the cost of the book.

1 answer:

anygoal [31]2 years ago

4 0

Answer:

a. x = total - $5

b. x = $6

c. x = $10

Step-by-step explanation:

a. pen + book = total

Let x = book

$5 + x = total

x = total - $5

b. pen + book = total

Total = 411

$5 + x = $11

x = $11 - $5

x = $6

c. pen + book = total

Total = $15

$5 + x = $15

x = $15 - $5

x = $10

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Given:
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3 years ago

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Darya [45]

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3 years ago

If the average yield of cucumber acre is 800 kg, with a variance 1600 kg, and that the amount of the cucumber follows the normal

lorasvet [3.4K]

Answer:

a

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b

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Step-by-step explanation:

From the question we are told that

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Generally $\frac{X - \mu }{ \sigma } = Z (standardized \ value \ of \ X)$

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3 years ago

Read 2 more answers