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DaniilM [7]
3 years ago
10

Richard s kitchen floor measures 22 ft by 16ft. He plans on laying title down and each tile piece measures 16 inches by 16 inche

s. How many tiles does he need to buy
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
3 0
We calculate the floor area of the kitchen:
 A = (22) * (16)
 A = 352 feet ^ 2
 We consider the following conversion:
 1 foot = 12 inches.
 Applying the conversion we have:
 A = 352 * (12/1) ^ 2
 A = 50688 in ^ 2
 We calculate the area of each tile:
 A = (16) * (16)
 A = 256 in ^ 2
 Then, the number of tiles is given by:
 N = (50688) / (256)
 N = 198
 Answer:
 He
 needs to buy 198 tiles
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zloy xaker [14]

Answer:

f(x) = 4x^2 + 2x - 4.

Step-by-step explanation:

Let the quadratic function be y = f(x) = ax^2 + bx + c.

For the point (-2, 8)  ( x = -2 when y = 8) we have:

a(-2)^2 + (-2)b + c = 8

4a - 2b + c = 8      For (0, -4) we have:

0 + 0 + c = -4   so c = -4.    For (4, 68) we have:

16a + 4b + c = 68  

So we have 2 systems of equations in a and b ( plugging in c = -4):

4a - 2b - 4 = 8

16a + 4b - 4 = 68

4a - 2b = 12

16a + 4b = 72    Multiplying 4a - 2b = 12 by 2 we get:

8a - 4b = 24  

Adding the last 2 equations:

24a = 96

a = 4

Now plugging a = 4 and c = -4 in the first equation:

4(4) - 2b - 4 = 8

-2b = 8 - 16 + 4 = -4

b = 2.

3 0
3 years ago
What is -5/8 + 3/4 I cannot seem to figure it out correctly thanks!
Pepsi [2]

Step-by-step explanation:

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How would adding a score of 0 to this data affect the mean and median game scores? 100,120,130,150
ivanzaharov [21]

Answer:

Step-by-step explanation:

It would add a 0

8 0
3 years ago
Consider circle H with a 3 centimeter radius. If the length of minor arc RT is 2 3 π, what is the measure of ∠RST?
Nataliya [291]
The main formula is   arc RT =  r x measure <span>RST
so </span>∠RST=<span>minor arc RT / r
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3 0
3 years ago
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Jack is learning how to save,spend,and give his money away. He has determined to give away 10% if his summer job earnings. If he
romanna [79]

Answer:

Jack earned $2560 this summer.

Step-by-step explanation:

Given:

Money given away = $256

Percentile of money give away = 10%

We need to find the total money he earned this summer.

Solution:

Let the total money he earned this summer be 'x'.

So we can say that;

Money given away is equal to Percentile of money give away multiplied by total money he earned this summer and then divided by 100.

framing in equation form we get;

\frac{10}{100}\times x = 256\\\\\frac{x}{10}=256

Now multiplying both side by 10 we get;

\frac{x}{10}\times 10=256\times 10\\\\x=\$2560

Hence Jack earned $2560 this summer.

6 0
3 years ago
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