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Firdavs [7]
3 years ago
14

Chelsea paid 1.35 skate rental with dimes and nickels. Only 19 coins in all. How many of each?

Mathematics
2 answers:
patriot [66]3 years ago
3 0
4 quarters, 5 nickels, and 10 pennies.
4q=1.00
5n=0.25
10p=0.10
1.35 in total
PolarNik [594]3 years ago
3 0
7 nickels and the rest dimes
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4 0
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Question 1: Find the equation of the line through point (5,4) and perpendicular to y=−43x−2. Use a forward slash (i.e. "/") for
Mariulka [41]

Answer:

Question 1: y = 3/4x + 1/4.

Question 2: y = 6/5x + 7/5.

Step-by-step explanation:

Question 1: A line perpendicular to another line would have a slope that is the negative reciprocal of the other line. If the slope of the first line is -4/3, the slope of a line perpendicular to the first would have a slope of 3/4.

Since the line goes through (5, 4), we can just put the points into the equation, y = 3/4x + b.

4 = 3/4(5) + b

b + 15/4 = 4

b = 16/4 - 15/4

b = 1/4

So, the equation of the line is y = 3/4x + 1/4.

Question 2: 5x + 6y = -6

6y = -5x - 6

y = -5/6x - 1

As stated before, a line perpendicular to another will have a slope that is the negative reciprocal of the other. So, the slope of the other line is 6/5.

The line goes through (-2, -1), so we can put the points into the equation, y = 6/5x + b.

-1 = 6/5(-2) + b

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b = -5/5 + 12/5

b = 7/5

So, the equation of the line is y = 6/5x + 7/5.

Hope this helps!

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3 years ago
Which diagram could be used to prove (triangle) ACB ~ (triangle) DEC using similarity transformations?
solong [7]

Answer:

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