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alukav5142 [94]
3 years ago
9

If a person bikes 5 miles in 1.5 hours, how far can he bike in 13.5 hours

Mathematics
1 answer:
faltersainse [42]3 years ago
3 0
Using proportions is the easiest way to solve these type of questions. Proceed as such:

                   <u>  5 miles  </u>  =     <u> 'x' miles </u>  
                   1.5 hours        13.5 hours

                       'x' miles = (5 miles / 1.5 hours) * (13.5 hours)

                       'x' miles = 45 miles
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GET BRAINLIEST FOR THE CORRECT ANSWER AND EXPLANATION!
Tresset [83]

Interpreting the inequality, it is found that the correct option is given by F.

------------------

  • The first equation is of the line.
  • The equal sign is present in the inequality, which means that the line is not dashed, which removes option G.

In standard form, the equation of the line is:

x + 2y = 6

2y = 6 - x

y = -0.5x + 2

Thus it is a decreasing line, which removes options J.

  • We are interested in the region on the plane below the line, that is, less than the line, which removes option H.

------------------

  • As for the second equation, the normalized equation is:

3x^2 + 3y^2 = 12

3(x^2 + y^2) = 12

x^2 + y^2 = 4

  • Thus, a circle centered at the origin and with radius 2.
  • Now, we have to check if the line x + 2y - 6 = 0, with coefficients a = 1, b = 2, c = -6, intersects the circle, of centre x = 0, y = 0
  • First, we find the following distance:

d = \sqrt{\frac{|ax + by + c|}{a^2 + b^2}}

  • Considering the coefficients of the line and the center of the circle.

d = \sqrt{\frac{|1(0) + 2(0) - 6|}{1^2 + 2^2}} = \sqrt{\frac{6}{5}} = 1.1

  • This distance is less than the radius, thus, the line intersects the circle, which removes option K, and states that the correct option is given by F.

A similar problem is given at brainly.com/question/16505684

3 0
3 years ago
What is the value of x in the equation 2(x-3)+9=3(x+1)+x?<br> O x=-3<br> x X=-1<br> x = 0<br> x=3
Debora [2.8K]

Answer:900000

Step-by-step explanation:

Use a calculator

5 0
3 years ago
Read 2 more answers
Please help me with these two :/
serg [7]
The first answer is 80, and the second answer is still 65.5. Hope this helps!
3 0
3 years ago
Please help me with this
jeka57 [31]

Answer:

1) they equation they solved was correct as they were able to do the correct operation to yield their answer.

2)this problem should be approached by subbing in the correct X values and y values into their rightful position, by doing this U will yrild the correct answer

8 0
3 years ago
How to graph a line that passes through (-1,-7) and has a slope of 4
lana [24]

Answer:

y=4x-3

Step-by-step explanation:

First, write your equation as y=4x+b. Plug in your coordinate to the equation, it should look like this: -7=4(-1)+b. Multiply 4 by -1 to get -4. It should look like this: -7= -4+b. Add 4 to both sides to get your y-intercept of -3. Go back to your original equation and plug in -3 to b. This is your final equation: y=4x-3. Hope this helped!

5 0
3 years ago
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