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jolli1 [7]
3 years ago
6

A map with a scale of 1 inch : 10 miles is used to make a map with a scale of 1 inch : 20 miles. The distance from one city to a

nother on the map with scale 1 inch : 10 miles is 5 inches. How can you find the corresponding distance on the map with scale 1 inch : 20 miles?
Mathematics
1 answer:
Zepler [3.9K]3 years ago
3 0

Answer: 124 miles i think

Step-by-step explanation:

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In an older television set, the screen height is 0.75 times the screen width.
natima [27]
The television set has a rectangular shape. The diagonal of this rectangle along with its width and length together form a right angular triangle.
This means that we can apply the Pythagorean theorem which states that:
(diagonal)^2 = (length)^2 + (width)^2

Let the width be w. We know that the length is 0.75 times the width, this means that: length = 0.75 w

Substitute in the above equation:
(20)^2 = (0.75w)^2 + (w)^2
400 = 0.5625 w^2 + w^2
400 = 1.5625 w^2
w^2 = 256
w = 16

This means that the width of the screen is 16 in. 
5 0
3 years ago
What is equivalent to 3 to the negative 2nd power
VladimirAG [237]
3 to the negative second power is written like this: 3^{-2}. 

When simplifying an expression with a negative exponent, you take a positive version of the exponent, in this case that would be 2, and apply that to the base. 
After doing that, we have 9. 
The next step is to put one over that number.
In this case, now after doing that the answer is \frac{1}{9}. 

Hope this helps!
6 0
3 years ago
I am confused at how to solve this question.
MrRissso [65]
110 yards        1 mile            3600 sec
-------------- * ----------------- * -------------- = 14 miles per hour      (answer)
 16 sec         1760 yards        1 hr
3 0
3 years ago
Which polynomial represents (6 x 2 −x−9)(4x−7)?
nydimaria [60]

Answer:

The answer to your question is 24x³ - 46x²- 28x + 63

Step-by-step explanation:

Data

               (6x² - x - 9)(4x - 7)

Process

1.- Multiply 4x by the three terms of the first polynomial

           (6x² - x - 9)(4x) = 24x³ - 4x² - 36x

2.- Multiply -7 by the three terms of the first polynomial

           (6x² - x - 9)(-7) = -42x² + 7x + 63

3.- Add both result

           24x³ - 4x² - 36x -42x² + 7x + 63 = 24x³ - 46x²- 28x + 63

6 0
3 years ago
At a chairity basketball game, 450 tickets were sold to students at a school. The remaining x tickets were sold to the public. t
kaheart [24]

Answer: you could make a chart using guess and check

3 0
2 years ago
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