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MaRussiya [10]
3 years ago
6

To complete a task in 15 days a company needs 4 people each working for 8 hours per day. the company decides to have 5 people ea

ch working for 6 hours per day. assume that each person works are the same rate. how many days will the task take to complete?
Mathematics
1 answer:
Lilit [14]3 years ago
3 0
It would take 16 days
explanation
if it takes 15 for 4 people to work 8 hours to complete the task, it would be a total of 480 hours. I multiplied 15x4x8. i multiplied 5x6 to get 30. I have to find the third value so i divided 30 from 480 to get 16.
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Determine the equation of the graph and select the correct answer (-4,-1)
Snowcat [4.5K]

Answer:

(-4,-1)

Step-by-step explanation:

Assuming the graph is the one shown in the attachment.

The forward sloping line has a slope of 1 and a y-intercept of 3.

The equation of this line is y=x+3

The horizontal line has a slope of 0 and y-intercept of -1.

It's equation is y=-1

The two lines intersect at (-4,-1)

4 0
3 years ago
(Algebra 2)<br><br> Find the inverse of f(x) and its domain.
elixir [45]
Let f(x)=y
f^-1(x)=x
y=1/(x+5) - 1
y+1=1/(x+5)
(x+5)=1/(y+1)
x=1/(y+1)-5
f^-1(x)=1/(x+1) -5

denominator cannot equals to zero
x+1≠0
x≠-1

answer
B
4 0
2 years ago
PLEASE HELP QUICK!! WILL OFFER 100 POINTS TO THE FIRST ONE THAT ANSWERS
Reil [10]

Given

x+1 = \sqrt{7x+15}

We have to set the restraint

x+1\geq 0 \iff x \geq -1

because a square root is non-negative, and thus it can't equal a negative number. With this in mind, we can square both sides:

(x+1)^2=7x+15 \iff x^2+2x+1=7x+15 \iff x^2-5x-14 = 0

The solutions to this equation are 7 and -2. Recalling that we can only accept solutions greater than or equal to -1, 7 is a feasible solution, while -2 is extraneous.

Similarly, we have

x-3 = \sqrt{x-1}+4 \iff x-7=\sqrt{x-1}

So, we have to impose

x-7\geq 0 \iff x \geq 7

Squaring both sides, we have

(x-7)^2=x-1 \iff x^2-14x+49=x-1 \iff x^2-15x+50 = 0

The solutions to this equation are 5 and 10. Since we only accept solutions greater than or equal to 7, 10 is a feasible solution, while 5 is extraneous.

7 0
3 years ago
What is the point of intersection of the linear system<br> x=5 and y = - 4
mestny [16]
Answer: The linear equations intersect at 5 , -4

8 0
3 years ago
Find the area of the circle with the given radius or diameter use pi equals 3.1 4 R is equal to six
marysya [2.9K]
<h2>Hello!</h2>

The answer is:

The area is equal to 113.04 units.

<h2>Why?</h2>

To find the area of the circle, we need to use the given information about the radius (6).

So, the area of a circle is given by the following formula:

A=\pi *r^{2}

Where,

\pi=3.14 (For This Case)\\r=radius

Substituting the given radius, we have:

A=3.14*(6)^{2}=3.14*36=113.04units

Have a nice day!

3 0
3 years ago
Read 2 more answers
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