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OverLord2011 [107]
3 years ago
5

I need help on 5 and 6 please HELP ME

Mathematics
1 answer:
morpeh [17]3 years ago
8 0
480 breaths in 2 minutes
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A civil engineer is designing a public parking lot for the new town hall. The number of cars in each row should be six less than
Alexandra [31]
The new parking lot must hold twice as many cars as the previous parking lot. The previous parking lot could hold 56 cars. So this means the new parking lot must hold 2 x 56 = 112 cars

Let y represent the number of cars in each row, and x be the number of total rows in the parking lot. Since the number of cars in each row must be 6 less than the number of rows, we can write the equation as:

y = x - 6             (1)

The product of cars in each row and the number of rows will give the total number of cars. So we can write the equation as:

xy = 112           (2)

Using the above two equations, the civil engineer can find the number of rows he should include in the new parking lot.

Using the value of y from equation 1 to 2, we get:

x(x - 6) = 112       (3)

This equation is only in terms of x, i.e. the number of rows and can be directly solved to find the number of rows that must in new parking lot.
6 0
3 years ago
A rectangular prism has a length of 12in, a height of 5in, and a width of 8in. What is its volume, in cubic in?
cupoosta [38]

Answer: The volume is 480 in^3

Step-by-step explanation:

v= lwh

v= 12 * 5 * 8

v= 480 in^3

3 0
3 years ago
Read 2 more answers
What is the first step in describing what figure results when a given plane intersects a given three dimensional figure?
kaheart [24]
<h2><u><em>Divide and subtract from both sides</em></u></h2>
3 0
3 years ago
Which is the graph of f(x)= square root of x
insens350 [35]
Hello!

The answer for f(x) = sqrt x is the image below. It is neither of these, so check to see if you have more answer choices. (Just make sure to pay attention to the x- and y-values that the graph is plotted on below)

I hope this helps :))

4 0
3 years ago
If Y varies directly with X solve the following :
tresset_1 [31]

Answer:

B) When Y = 90

X = 90 x -3

= -270

C) When X = -8

Y = 33.6(approx.)

D) When Y = 12.6

X = 12.6 x 3

= 37.8

Hope this helps!

4 0
3 years ago
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