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IgorLugansk [536]
3 years ago
11

I need help with this word problem:

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer: 5 bikes and 3 tricycles

Step-by-step explanation: 10/2=5 bikes

9/3=3 tricycles

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Use the distributive property to simplify 7(2a + 5).
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How many solutions is there for 8 + 9p = 9p - 7
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Answer: There are no solutions.

Step-by-step explanation: So the way you do this is by subtracting 9p from both sides, which gets you:

8 = -7

Since 8 is not equal to -7, there is no solution to this equation.

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I don’t know how to get the line, help please?
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Answer:

once you place your coordinates go to the pencil looking thing if on kami if not and on docks go to tools and click scribble

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Triangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that lines BC and EF have the opposite an
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Slope of CB × Slope of FE = 1 × (-1) = -1 [opposite and reciprocal slopes].

<h3>What is the Slope of a Line?</h3>

Slope of a line = vertical distance along the line / horizontal distance across the line = change in y / change in x.

<h3>What are Opposite and Reciprocal Slopes?</h3>

If a line has a slope of -3, the opposite and reciprocal of -3 is 1/3. Thus, if two slopes are opposite and reciprocals, when multiplied together, we would get -1.

For example, -3 × 1/3 = -1.

Find the slope of CB:

Slope of CB = change in y/change in x = (2 - 5)/(1 - 4)

Slope of CB = (-3)/(-3)

Slope of CB = 1

Find the Slope of FE:

Slope of FE = change in y/change in x = (-1 -(-4))/(2 - 5)

Slope of FE = (3)/(-3)

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Slope of CB × Slope of FE = 1 × (-1) = -1 [opposite and reciprocal slopes].

Learn more about the slope of a line on:

brainly.com/question/3493733

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3 0
2 years ago
in a proportional relationship the ratio y/x is constant. Show that this ratio is not constant for the equation y=a-14
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To show that the ratio \frac{y}{x} is not constant for the function y=a-14 we only need to evaluate this function at 2 points and then show that the ratio is not the same for those two points. Note that here a represents x.  

To find the counter examples here, I will use the values a=20  and a=28. For a = 20 , the equation tells us that the output is

y=20-14=6. For this value of a the point is point is (20,6). The ratio \frac{y}{x} =\frac{6}{20}. For the a=28, y=28-14=14. For this value of a the  point is (28,14) . The ratio \frac{y}{x} =\frac{14}{28} =\frac{1}{2}. Clearly this ratio is not constant for all ordered pairs.

8 0
3 years ago
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