1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
In-s [12.5K]
3 years ago
7

A brand of clay brick tiles has the dimensions 3 5 8 by 7 5 8 by 1 2 inch. These thin bricks are commonly used for floors. Estim

ate the cost to tile the floor of a 12-by-17-foot room. Each clay brick tile sells for $0.72. Round your final answer to the nearest hundred.
Mathematics
1 answer:
raketka [301]3 years ago
7 0

Answer: The cost to tile the floor is $318.24.

Step-by-step explanation:

Since we have given that

Dimensions of floor is 12 by 17 foot.

So, Area of floor would be

12\times 17\\\\=204\ sq.\ foot

As we know that 1 foot = 12 inch

So, Area of floor would be

204\times (12)^2\\\\=204\times 144\\\\=29376\ sq.\ foot

Dimension of brick tiles is given by

3\dfrac{5}{8}\ by\ 7\dfrac{5}{8}\ by\ \dfrac{1}{2}

So, Area of brick tiles is given by

2(lb+bh+lh)\\\\=2(\dfrac{29}{8}\times \dfrac{61}{8}+\dfrac{61}{8}\times \dfrac{1}{2}+\dfrac{29}{8}\times \dfrac{1}{2})\\\\=2(\dfrac{1769}{64}+\dfrac{61}{16}+\dfrac{29}{16})\\\\=2\times \dfrac{1769+244+116}{64}\\\\=\dfrac{2129}{32}

So, Number of clay brick would be

29376\div \dfrac{2129}{32}\\\\=29376\times \dfrac{32}{2129}\\\\=\dfrac{29376\times 32}{2129}\\\\=441.53\\\\\approx 442

cost of each clay brick = $0.72

So, Total cost of flooring would be

442\times 0.72\\\\=\$318.24

Hence, The cost to tile the floor is $318.24.

You might be interested in
How do you solve radical 2x plus 5 equals x?
Ksenya-84 [330]
X=-5 is your answer. Hope this helps :)
8 0
3 years ago
Read 2 more answers
16. The temperature of an oven at 0°C has an
butalik [34]

Answer:

300K

Step-by-step explanation:

T = t + 273 °C

T is absolute temperature

t = given temperature (27°C in this case)

Hence T = 27 °C + 273 °C (standard temperature)

T = 300K (since absolute temperature is measured in K from the question's preamble)

6 0
2 years ago
(15 – 5) •2<br> ill give brainlist
IRISSAK [1]

Answer:

20

Step-by-step explanation:15-5=10 10 x 2 =20

8 0
3 years ago
Read 2 more answers
genetic experiment with peas resulted in one sample of offspring that consisted of green peas and yellow peas. a. Construct a ​%
Andreas93 [3]

Complete Question

A genetic experiment with peas resulted in one sample of offspring that consisted of 432 green peas and 164 yellow peas. a. Construct a 95% confidence interval to estimate of the percentage of yellow peas. b. It was expected that 25% of the offspring peas would be yellow. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations?

Answer:

The  95%  confidence interval is  0.2392  <  p < 0.3108

No, the confidence interval includes​ 0.25, so the true percentage could easily equal​ 25%

Step-by-step explanation:

From the question we are told that

  The total sample size is  n  =  432 + 164 =596

   The  number of  offspring that is yellow peas is y =  432

   The  number of  offspring that is green peas   is g =  164

   

The sample proportion for offspring that are yellow peas is mathematically evaluated as

        \r p  =  \frac{ 164 }{596}

        \r p  =  0.275

Given the the  confidence level is  95% then the level of significance is mathematically represented as

       \alpha  =  (100 - 95)\%

      \alpha =  5\%  =  0.0 5

The  critical value of  \frac{\alpha }{2} from the normal distribution table is  

      Z_{\frac{\alpha }{2} } = 1.96

Generally the margin of error is mathematically evaluated as

        E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\r p (1- \r p )}{n} }

=>      E = 1.96 * \sqrt{\frac{0.275 (1- 0.275 )}{596} }

=>      E =  0.0358

The  95%  confidence interval is mathematically represented as

      \r p - E  <  p < \r p + E

=>   0.275 -  0.0358  <  p < 0.275 +  0.0358

=>   0.2392  <  p < 0.3108

6 0
3 years ago
Dados os vectores ⃗⃗ = (2, −4), ⃗ = (−5, 1) e ⃗⃗ = (−12, 6), determinar 1 e 2 tal que
Ostrovityanka [42]

sus sus sus sus sus sus sus sus sus sus sus sus sus sus sus sus

3 0
3 years ago
Other questions:
  • 69.5 is What precent of 85?
    5·2 answers
  • Solve: x^+4/x-1 = 5/x-1
    12·1 answer
  • When a math problem say twice as the amount what operation is that
    12·1 answer
  • Line r passes through points (8,10) and (2,3). Line s is perpendicular to r. What is the slope of line S?
    15·1 answer
  • To share a number into hundredths you divide it by which number
    8·1 answer
  • What is five sixths times 5
    11·2 answers
  • On a number line 8.2 would be located where
    14·1 answer
  • I GIVEEE BRAIUNLILSTT
    11·2 answers
  • Add the polynomials (4x + 3)+(2x+7)<br> pls hurry
    7·2 answers
  • The black line is a graph of y=x. Which of these equations could represent the blue line
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!