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Yuliya22 [10]
2 years ago
11

If it takes 3,127 feet of computer cable to wire an office building, how much cable will be left if the wire is taken from a 5,0

00 foot reel?
Mathematics
2 answers:
anyanavicka [17]2 years ago
6 0
This is one of the most complex problems I've seen on Brainly. If you don't understand after reading my lengthy explanation, just tell me.

You have 5000 feet of reel. The office building uses 3127 feet of cable.
So you do 5000-3127 to find the remaining amount of reel.

5000 - 3127 = 1873

Whew! That was quite difficult, wasn't it?
Alexxandr [17]2 years ago
5 0
5000 - 3127 = 1873 feet
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Mitch is making birdhouses to sell. He needs to make at least $678. Each birdhouse costs $28 to make. He is selling them for $40
d1i1m1o1n [39]
Exact=56.5 rounded would be 57 because you can't make half a birdhouse.
4 0
2 years ago
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Six pairs of socks cost as much as 1 coat, 2 pairs of jeans cost as much as 3 pairs of shoes, and 4 pairs of socks cost as much
REY [17]
(1) 6 pairs of socks = 1 coat
(2) 2 pairs of jeans = 3 pairs of shoes
(3) 4 pairs of socks = 1 pair of jeans

the last two points are irrelevant becuase we just need socks and coats. 
6 pairs of socks are equal to 1 coat. 
we need 64 pairs of socks. 
so, 64 ÷ 6 = 10.67

so we'll need 10.67 coats for 64 pairs of socks. 

i'm not sure if you've typed up the correct numbers becuase i don't think the answer would be expressed as a decimal. 

unless we say that we need 11 pairs of coats? 

perhaps reread the question again and make sure you've typed it up correctly
xD i hope i've helped. 
7 0
2 years ago
Sara is saving her summer earnings for a $500 school trip in the fall. She has $200 in her savings account at the beginning of J
Vilka [71]

Answer:she will need around 9 weeks and she will have enuogh

Step-by-step explanation:

9  

5 0
2 years ago
A survey found that 89% of a random sample of 1024 American adults approved of cloning endangered animals. Find the margin of er
Kobotan [32]

Answer:

The margin of error for the survey is 0.016

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

\hat{p} = 89\% = 0.89

We have to find the margin of error associated with a 90% Confidence interval.

Formula for margin of error:

z_{stat}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.10} = 1.64

Putting the values, we get:

M.E = 1.64\times (\sqrt{\dfrac{0.89(1-0.89)}{1024}})\\\\M.E=0.016

Thus, the margin of error for the survey is 0.016

3 0
2 years ago
Which number line models the expression 1/8-(-3/4)
RideAnS [48]

Answer:

\frac{7}{8}

Step-by-step explanation:

Given: \frac{1}{8}-(\frac{-3}{4} )

To find: number which represents the expression

Solution:

Integers refers to natural numbers, 0 together with negative of rational numbers.

A rational number is the number of the form \frac{p}{q} where p and q are integers and q\neq 0 .

\frac{1}{8}-(\frac{-3}{4} )=\frac{1}{8}+\frac{3}{4}\\ =\frac{1+6}{8}\\ =\frac{7}{8}

So, \frac{7}{8} represents \frac{1}{8}-(\frac{-3}{4} )

6 0
2 years ago
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