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Sever21 [200]
3 years ago
11

zoes living room rug is 3 feet wide and 7 feet long she will cover the rug with 6 inch cardboard pieces for a painting project h

ow many cardboard pieces will zoe need
Mathematics
2 answers:
Alexxandr [17]3 years ago
5 0

Zoe will need 84 pieces if they are 6” by 6”

aleksley [76]3 years ago
5 0

For this case we have that by definition, 1 foot equals 12 inches.

So:

3 \ ft = 36 \ in\\7 \ ft = 84 \ in

So, the area of the Zoes carpet is:

A = 36 * 84 = 3024 \ in ^ 2

If the cardboard pieces are6 \ in\ by\ 6 \ in, then the area is:

36 \ in ^ 2

To indicate the number of necessary pieces we divide:

\frac {3024} {36} = 84

Thus, 84 pieces of cardboard are needed

Answer:

84

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I need help with this math question
djyliett [7]
Percent means per one hundred so we can say that:

p/100≈(28)/(28+81+45+63+35)  guessing with my old eyes :)

p/100≈28/252

p≈2800/252

p≈11.11%

So rounded to the nearest 5% you'd have:

p≈10%
5 0
3 years ago
A 26-foot long ladder is leaning against a building at a 60 degree angle with the ground. Which of the following equations can y
Sati [7]

Answer:

22.5 feet (to the nearest tenth).

Step-by-step explanation:

The equations have not been given but still the question can be solved. The ladder lying with a building makes a right angled triangle, in which the ladder is the hypotenuse, the building is the perpendicular, and the ground is the base. The length of the ladder (hypotenuse) is 26 feet and the angle with the ground is 60 degrees. The required length to be found is the length of the building (perpendicular). So the following formula will be used:

sin θ = Perpendicular/Hypotenuse.

Substituting in the equation gives:

sin60 = p/26.

p = 26*sin60.

p = 22.5 (to the nearest tenth).

The approximate height of the building is 22.5 feet!!!

4 0
3 years ago
Read 2 more answers
Plss finish fast the question is linked thank you for ur help
kobusy [5.1K]

Answer: B. 2 2/5

Step-by-step explanation: Hope this help :D

3 0
3 years ago
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1. At a summer job, Melissa fixes computers for small businesses. She charges a $30 fee to start a job and $15 per hour for each
zalisa [80]
Thanks I 6889x the money 30x plus 1
7 0
3 years ago
A Starbucks coffee shop serves an average of 3500 customers per day, with a standard deviation of 250. What is the probability t
castortr0y [4]

Answer:

P(3300  

And we can find this probability with this difference:  

P(-0.8  

Step-by-step explanation:

Previous concepts  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem  

Let X the random variable that represent the amount of cofee shops of a population, and for this case we know the distribution for X is given by:  

X \sim N(3500,250)  

Where \mu=3500 and \sigma=250  

We are interested on this probability  

P(3300  

And the best way to solve this problem is using the normal standard distribution and the z score given by:  

z=\frac{x-\mu}{\sigma}  

If we apply this formula to our probability we got this:  

P(3300  

And we can find this probability with this difference:  

P(-0.8  

6 0
3 years ago
Read 2 more answers
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