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Grace [21]
3 years ago
12

A contractor charges $1,200 for 100 swat feet of roofing installed. At this rate, how much does it cost to have 1,000 square fee

t installed?
Mathematics
1 answer:
Oliga [24]3 years ago
3 0

Answer:

12000

Step-by-step explanation:

1200=100

x=1000

x=100*1200/100

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An item that was selling for $72.00 was reduced to $60.00. Find the percent decrease in price. Show all your work.
dsp73
The formula to figure out the percentage increase or decrease is: 
<span>(new - old) / old * 100% </span>

<span>new = 60 </span>
<span>old = 72 </span>

<span>(60 - 72) / 72 * 100% </span>
<span>-12 / 72 * 100% </span>
<span>= -1/6 * 100% </span>
<span>= -0.1666... * 100% </span>
<span>≈ -16.667% </span>

<span>Because it is negative, that's a decrease. </span>

<span>Answer: </span>
<span>A decrease of about 16.7%</span>
8 0
3 years ago
Which expression is equivalent to 5 square root 11^3​
AlladinOne [14]

Answer:

11^3/5

Step-by-step explanation:

The exponent of 3 becomes the numerator while the 5 in the root becomes the denominator which creates the fraction 3/5. So the final answer is 11^3/5

6 0
3 years ago
2.6 less than the product of 4 and a number z
Alexandra [31]
I think The answer is B
3 0
3 years ago
Read 2 more answers
Help with 8 and 9??? Please help me out! Correct answers please
Ipatiy [6.2K]

Answer:

  8.  (-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

  9.  f(g(x)) = 4x/(1+6x)

Step-by-step explanation:

8. For f(g(x)) to be defined, g(x) must be defined and f(g(x)) must be defined.

g(x) will be defined for all x≠0. f(g(x)) will be defined for g(x)≠4. Solving g(x)=4, we find the value of x is 1/3. (The answer choices give a clue.)

So, the domain of f(g(x)) is all x that is not 0 or 1/3. Only one answer choice makes those particular exclusions:

  (-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

__

9. Substituting the definition of g(x) into the expression for f(x), we get ...

\displaystyle (f\circ g)(x)=f(g(x))=\frac{2}{g(x)+3}=\frac{2}{\frac{1}{2x}+3}\\\\=\frac{2}{\left(\frac{1+6x}{2x}\right)}\\\\(f\circ g)(x)=\frac{4x}{1+6x}

4 0
3 years ago
65563756786875473465332 x 87546536868796854743653452764 - 675345636342535865 +964874836536736478478576587658756765 x 45345647586
Solnce55 [7]

Hello there I hope you are having a great day :)

Your question, 65563756786875473465332 x 87546536868796854743653452764 - 675345636342535865 +964874836536736478478576587658756765 x 453456475867865436457864354536455647556

=  65563756786875473465332 x 87546536868796854743653452764

= 5.7398799 - 675345636342535865 = -6.7534564

-6.7534564 + 964874836536736478478576587658756765 = 9.6487484

9.6487484 x 453456475867865436457864354536455647556

= 4.3752874

And that's your answer I hope that help you :)

3 0
2 years ago
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