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nadya68 [22]
3 years ago
8

PLEASE HELP ASAP!!!! 40 POINTS

Mathematics
2 answers:
nadezda [96]3 years ago
8 0

Answer:

1. 70%.

2. 45%

3.-15%

4. 20 something%?

5. 50%

Step-by-step explanation:

Nimfa-mama [501]3 years ago
3 0

Answer:

increase of 70%

im not sure sorry!

decrease of 15%

im not sure

im not sure

im so sorry i do not know all of them, but i know some!

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alexira [117]

Answer:

is questions no 6 is the correct answer

7 0
2 years ago
Pleaseeee helpppppppppp
o-na [289]

Answer:

25 ft^2

Step-by-step explanation:

In direct variation, if y varies directly with x, then the equation has the form

y = kx,

where k is the constant of proportionality. y is proportional to x.

Let's call the area y and the distance x.

Here, the area varies with the square of the distance, so the equation has the form

y = kx^2

Here, y is proportional to the square of x.

We can find the value of k by using the given information.

y = kx^2

When x = 20 ft, y = 16 ft^2.

16 = k(20^2)

k = 16/400

k = 1/25

The equation of the relation is:

y = (1/25)x^2

Now we use the equation we found to answer the question.

What is y (the area) when x (the distance) is 25 ft?

y = (1/25)x^2

y = (1/25)(25^2)

y = 25

Answer: 25 ft^2

5 0
2 years ago
Hello can anyone help me with these problems please and ty
vlabodo [156]

12. x= 4

13. x= 4

14. x= -1

Check the steps in the picture above

6 0
2 years ago
It took 30 minutes for Melinda to run 4 miles what is the ratio
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5 0
3 years ago
Write an equation in standard form for a line that passes through (2,2) and (0,-3).
asambeis [7]
So,

The standard form is:
y = mx + b

First, we find "m," the slope.  Subtract the y-coordinates from each other.  Do likewise with the x-coordinates.

2 - -3 = 5
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y= \frac{5}{2} x+b

Now, we can substitute the second solution into this equation for x and y and solve for "b."

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Now we have our complete equation.

y= \frac{5}{2} x-3
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2 years ago
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