15. On the cross-country team, 7th graders

Mathematics

1 answer:

ch4aika [34]1 year ago

6 0

“x = 1.15” is the answer

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Please help.........

Alex

Answer:

- $\frac{61}{11}$

Step-by-step explanation:

$\frac{x}{y}$ = $\frac{5}{6}$ ( cross- multiply )

6x = 5y ( divide both sides by 6 )

x = $\frac{5}{6}$ y

Then

$\frac{5x+6y}{5x-6y}$ ← substitute x = $\frac{5}{6}$ y into the expression

= $\frac{\frac{25}{6}y+6y }{\frac{25}{6}y-6y }$

= $\frac{\frac{61}{6}y }{-\frac{11}{6}y }$

= $\frac{\frac{61}{6} }{-\frac{11}{6} }$

= $\frac{61}{6}$ × - $\frac{6}{11}$

= - $\frac{61}{11}$

3 0

3 years ago

What is the value of y?

VikaD [51]

The answer is 57 because using remote angles theorem you get the largest angle equals to 66 degrees but you are not done yet you have to subtract 66 from 180 because of sum of angles in a triangle so you get 114 degrees and since you have an isosceles triangle you have to divide by two to get y so y = 57 degrees

5 0

4 years ago

F(x)= (x - 6)(x + 2)?<br> What is the vertex of the quadratic function

Mars2501 [29]

Answer:

With this form, we can tell that the x intercepts are x=6 and x=-2. So the x coordinate of the vertex is 2

Step-by-step explanation:

6 0

3 years ago

The data below represents the ages of the first ten people in line at the movie theater.

tresset_1 [31]

It could be a box plot or a Histogram