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2 years ago

Find the number of square inches in one square foot. 144 12 24

Mathematics

2 answers:

Over [174]2 years ago

8 0

Answer:

it is 144

Step-by-step explanation:

a did the test and i picked 12 and it was wrong and 24 is wrong n i cant belive i got it wrong :(

bagirrra123 [75]2 years ago

6 0

think of this as finding the area of a box. if each side of the box is one foot long, or 12 inches long, you need to multiply length times width to find the square inches. in this case it would look like:

A= 12in x 12in

12in x 12in = 144in^2

A = 144 in^2

therefore there are 144 square inches in one square foot.

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7 = 3/9x solve for x

noname [10]

Answer:

x = 1/21

Step-by-step explanation:

7 = 3/9x

Multiply both sides by 9x

7 x 9x = 3/9x x 9x

9x cancels out on the right side

63x = 3

Divide both sides by 63 to isolate x

63x/63 = 3/63

x = 1/21

4 0

2 years ago

Read 2 more answers

Four runners start at the same point; Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes t

Helen [10]

Answers:

Lin's finish point is at 205 meters

Elena's velocity is 8.92 meters per second

Diego's finish point is at -259.2 meters or 259 meters behind the start

Andre's velocity is -8.14 meters per second

I hope this helps <3

6 0

2 years ago

If C(x) is the total cost incurred in producing x units of a certain commodity, then the average cost of producing x units of th

nataly862011 [7]

Answer:

x = 2000 cameras

Step-by-step explanation:

C(x) Total cost in producing x units

C- = C(x) /x Average cost of producing x units x > 0

Cannon Precision Instrument

C (x) Total monthly cost for producing x units of M1 cameras

is C(x) = 0.0025x² + 80x + 10000

Then average cost of producing x cameras M1 is

C-(x) = ( 0.0025x² + 80x + 10000) /x

C-(x) = 0.0025x + 80 + 10000/x

Taking derivatives on both sides of the equation

C-´(x) = 0.0025 - 10000/x²

Then

C-´(x) = 0

( 0.0025x² - 10000 ) / x² = 0

0.0025x² - 10000 = 0

x² = 10000 /0.0025 x² = 4000000

x = 2000 cameras

8 0

3 years ago

Simita has 25 coins, consisting of 10c and 5c, which total $2.25. how many of each does she have?

Ilya [14]

Answer:

10c = 20

5c = 5

Step-by-step explanation:

Let x be the number of 10c coins; let y be the number of 5c coins. The total is $2.25, so the amount of 10c and 5c coins will add to that. Simita has 25 coins, so x and y, the number of coins, will have to add to 25. Hence, solve the simultaneous equation.

10x + 5y = 225 (1) - times by 0

x + y = 25 (2) - times by 5

10x + 5y = 225 (1)

5x + 5y = 125 (2)

Then, take equation 2 away from equation 1.

5x = 100

x = 20

Substitute x back into the original equation.

x + y = 25

20 + y = 25

y = 5

7 0

2 years ago

Why is math important in our daily life?

fredd [130]

~Hello there!

Your question: Why is math important in our daily life?

Your answer: Math is important is our daily lives because it has become mandatory. We use it in each and everywhere. Which ever field you are getting into, math is always used there. Math is used in our kitchen, banks, schools, everywhere! Just think for a moment, what would be the world like without math..?
How will the engineers construct building?
How will we get the grades for our examinations?
How will we get to know the score of a football match?
Math is used everywhere, thus, in today's century math is obligatory.

Any questions?

Happy Studying!

3 0

3 years ago