All categories

2 years ago

A stack of books is 5 feet high. If the average book is three inches high, how many books are in the stack?

Mathematics

2 answers:

Thepotemich [5.8K]2 years ago

7 0

4 books make 1 foot since there are 12 inches in a foot so 4 * 5 is 20

There are 20 books in the stack

kipiarov [429]2 years ago

3 0

there are 12 inches in a foot and 3 times 4 is 12 5 feet times 4 is 20 your answer is 20 books

You might be interested in

Jodi is cutting out pieces of paper that measure 8 1/2 inches by 11 inches from a larger sheet of paper that has an area of 1000

attashe74 [19]

10 diffhhjjjkfdffyiihgfgghjjhggghh

3 0

2 years ago

You have a coupon for a local craft store that is for 40% off one item. You would like to purchase a glue gun for $8.99 and a ba

Yanka [14]

Answer:

$26.06

Step-by-step explanation:

You would like to purchase a glue gun for $8.99 and a basket for $25.99. The highest-priced item is a basket for $25.99. So, the coupon will take the discount off for this item.

The new price of the basket is

$\$25.99\cdot (1-0.4)=\$25.99\cdot 0.6=\$15.594$

The total cost of your buying is

$\$8.99+\$15.594=\$25.584$

There will be a 6% sales tax added to the price of all items. So, the end cost is

$\$25.584\cdot (1+0.06)=\$25.584\cdot 1.06=\$26.05904\approx \$26.06$

4 0

2 years ago

a(0.3−y)+1.1+2.4x (y−1.2) =0 =−1.2(x−0.5) Consider the system of equations above, where aaa is a constant. For which value o

Veseljchak [2.6K]

Answer:

For a = 1.22 there is one solution where y = 1.3

Step-by-step explanation:

Hi there!

Let´s write the system of equations:

a(0.3 - y) + 1.1 +2.4x(y-1.2) = 0

-1.2(x-0.5) = 0

Let´s solve the second equation for x:

-1.2(x-0.5) = 0

x- 0.5 = 0

x = 0.5

Now let´s repalce x = 0.5 and y = 1.3 in the first equation and solve it for a:

a(0.3 - y) + 1.1 +2.4x(y-1.2) = 0

a(0.3 - 1.3) + 1.1 + 2.4(0.5)(1.3 -1.2) = 0

a(-1) + 1.1 + 1.2(0.1) = 0

-a + 1.22 = 0

-a = -1.22

a = 1.22

Let´s check the solution and solve the system of equations with a = 1.22. Let´s solve the first equation for y:

1.22(0.3 - y) + 1.1 +2.4(0.5)(y-1.2) = 0

0.366 - 1.22y + 1.1 + 1.2 y - 1.44 = 0

-0.02y +0.026 = 0

-0.02y = -0.026

y = -0.026 / -0.02

y = 1.3

Then, the answer is correct.

Have a nice day!

4 0

2 years ago

Clarissa needs a $2,500 loan in order to buy a car. Which loan option would allow her to pay the least amount of interest?

denis-greek [22]

Answer:

Option A.

Step-by-step explanation:

Clarissa needs a $2,500 loan in order to buy a car.

There are 4 options of loan we will calculate all the options that pay the least amount of interest.

To calculate the interest we will use this formula :

$\frac{P\times R\times time}{100}$

Where P = Principal amount

R = rate of interest

T = time in years

A) Principal 2,500 interest 4.75% and time 18 months (1.5 years)

$\frac{2500\times 4.75\times 1.5}{100}$

= $178.125

B) Principal 2,500 interest 4% and time 30 months (2.5 years)

$\frac{2500\times 4\times 2.5}{100}$

= $250

C) Principal 2,500 interest 4.25% and time 24 months (2 years)

$\frac{2500\times 4.25\times 2}{100}$

= $212.50

D) Principal 2,500 interest 4.50% and time 36 months (3 years)

$\frac{2500\times 4.5\times 3}{100}$

= $337.50

The least amount of interest would be in option A.

5 0

2 years ago

Tom says he is comparing banks to see what interest rates they offer on savings accounts. Explain how Tom should use the informa

dolphi86 [110]

~Hello There!~

Tom should choose the bank that offers the highest interest rate because that would mean he makes more money.

Hope This Helps You!

Good Luck :)

Have A Great Day ^_^

- Hannah ❤

4 0

2 years ago

Read 2 more answers