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kolbaska11 [484]
3 years ago
11

Kathy's internet company charges a connection fee of 0.21 cents for each call and 0.06 cents per minute for each call she made f

rom her computer. Kathy was charged $1.95 for five calls in January. Write an equation that can be used to determine the number of minutes Kathy talked on 5 calls in January.
Mathematics
1 answer:
Sauron [17]3 years ago
7 0
1.95 = .21(5) + .06m

1.95 = 1.05 + .06m

Solving (if needed)
Subtract 1.05 from each side
1.95 - 1.05 = .06m
.90 = .06m
Divide .06 on both sides
15 = m
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Isaiah walks 3 miles due north, turns and then 5 miles due east. How far is he from his starting point?
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Isiah is 5.83 miles away from his starting point.

When you draw the the miles Isaiah walks, you will discover that you are forming a right angle triangle.

To measure the length from the starting point to the ending point. We must used the Pythagorean equation. Where in the square of the hypotenuse is equal to the sum of squares of the other two sides.

a² + b² = c²

a = 3 miles                        3² + 5² = c²
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c = hypotenuse.                    34    = c²
 
We must get the hypotenuse, since 34 is the square of the hypotenuse we must look for its square root.

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