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Step2247 [10]
3 years ago
7

Pls help me look at the picture ​

Mathematics
1 answer:
Ilya [14]3 years ago
7 0

Answer:

$28.98

Step-by-step explanation:

I did it myself hope it helps :>

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Find an equation for the inverse of the function. f(x)=2x-3x/4
Drupady [299]

Answer:

f⁻¹(x) = (4x)/5

Step-by-step explanation:

f(x) = 2x - 3x/4.

Assume y=f(x). Therefore:

y = 2x - 3x/4.

Make x the subject in the above equation.

y = (2x(4) - 3x)/4.

y = 5x/4.

4y = 5x.

(4y)/5 = x.

x = (4y)/5.

Therefore:

f(y) = (4y)/5.

Replace y with x.

f⁻¹(x) = (4x)/5.

Therefore, the inverse of f(x) = 2x - 3x/4 is f⁻¹(x) = (4x)/5!!!

7 0
4 years ago
The scale of a map is 1 inch: 250 miles. City A is 378 miles from City B. To the nearest tenth, how far is its distance on the m
juin [17]
This is a proportion question. We can express this as an equation where the answer is x:

\frac{1}{250} = \frac{x}{378}

From there, you can just cross-multiply and divide to get:

\frac{1 * 378}{250}

A tenth of 250 is 25, so this is roughly \frac{375}{250} or \frac{17}{10}, so it'll be approximately 1.7 inches on the map.
6 0
4 years ago
Read 2 more answers
Please help me with this graph question. I’ll give 5 stars
Nostrana [21]
All real numbers




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4 0
3 years ago
Where do the lines y = 3x + 5 and y = -2x + 10 intersect?
Anna71 [15]

9514 1404 393

Answer:

  (x, y) = (1, 8)

Step-by-step explanation:

A graphing calculator quickly tells you the point of intersection.

__

You can equate the y-values and solve for x.

  3x +5 = -2x +10

  5x = 5 . . . . . . . . . add 2x-5

  x = 1 . . . . . . . divide by 5

  3·1 +5 = y = 8 . . . . substitute for x in the first equation

The point of intersection is (x, y) = (1, 8).

6 0
3 years ago
Help meeeeeeeeeeeeeee​
Vesnalui [34]

Answer:

A

Step-by-step explanation:

If each lawn he mows earns him $25, at one lawn mowed he would have $25. At two lawns mowed he would have $50. At three lawns mowed he would have $75. We graph these points to get the graph of answer A.

5 0
3 years ago
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