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3 years ago

A stack of books is 5 feet high of the average book is 3 inches Hugh how many books are in the stack

Mathematics

2 answers:

allochka39001 [22]3 years ago

7 0

Answer:

Step-by-step explanation:

1) 5 feet is 60 inches

2)Divide 60 inches (total inches in one stack) by the 3 inches ( inches in the Average book)

3) 60/3=<u>20</u>

77julia77 [94]3 years ago

4 0

Answer:

20 books

Step-by-step explanation:

Given : A stack of books is 5 feet high of the average book is 3 inches High.

To Find: How many books are in the stack?

Solution:

1 foot = 12 inches

5 feet = $12 \times 5 = 60$ inches

Height of stack = 60 inches

Height of 1 book = 3 inches

Number of books in a stack = $\frac{\text{Height of stack}}{\text{Height of 1 book}}$

= $\frac{60}{3}$

= $20$

Hence,There are 20 books in a stack.

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The area of a bulletin board is 55 ft2. The length is nine feet less than four times the width. Find the length and the width, i

galben [10]

Answer:

The length and width are 11ft and 5ft respectively

Step-by-step explanation:

let the

length = L

Width = W

Area = LW = 55

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W (4W - 9) = 55

4W^2 - 9W -55 = 0

4W^2 - 20W + 11W - 55 = 0

4W(W - 5) + 11(W - 5) = 0

(W - 5)(4W + 11) = 0

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W = 5 or - 11/4

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3 years ago

"-3x" + 5 < "-10" Inequality 2: 7x + x - 4 > 28 Which of the following values makes BOTH inequalities TRUE? Select all tha

zysi [14]

Answer:

12, 23, 48, 325

Step-by-step explanation:

So, when given two inequalities and asked to find the values that make both true, it is considered a system of equations. To solve a system of equation, you have to graph the inequalities and find where they intersect.

Inequality 1:

(-3x) + 5 < (-10)

Inequality 2:

7x + x - 4 > 28

simplifies to: 8x - 4 > 28

When graphed, the inequalities don't intersect, but rather have a similar shaded area overlapping from the point of 5 and greater.

Answers that apply from given list would be:

12, 23, 48, 325

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forsale [732]

Answer:

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Step-by-step explanation:

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3 years ago

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solniwko [45]

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2 years ago

Read 2 more answers

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earnstyle [38]

Answer:

2:00 PM

Step-by-step explanation:

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