Question

How would I do this??


A triangular playground has angles with measures in the ratio 8 : 7 : 5. What is the measure of the smallest angle?

o 28
o 45
o 6
o 39

Answer 1

ok, let the angles be 8x,7x,5x
because they are in the ratio 8 : 7 : 5
also, sum of angles in a triangle is 180
so you have
8x+7x+5x=180
can u solve this to find x ?

Answer 2

I have a question. So, to solve other problems like this one, would we always put it in that format? For instance, 5 : 7 would be 5x + 7x = 180

20x = 180
Divide both sides by 180
x = 9

Answer 3

the triangle has 3 sides, so it would never be like 5:7
but for any other case , if the ratio is 5:7
u can safely take as 5x and 7x

Answer 4

Okay
I found x for the problem; I got 9. What do we do next?

Answer 5

thats correct, x=9
and smallest angle is 5x =... ?

Answer 6

Oh okay 5(9) = 45

Answer 7

Thank you for your help! :) Would you mind helping me with one more?

Answer 8

welcome ^_^
sure, ask.

Answer 9

Write an equation in slope intercept form of the line through points P(6,7) with slope -2.

Answer 10

I think it would be y = -2x + 7

Answer 11

the point slope form is
y-y1 = m(x-x1)
to get slope -intercept form, you isolate y
y-7=(-2)(x-6)
now isolate y from this.

Answer 12

y - 7 = -2x + 12
Add 7 on both sides
y = -2x + 19

Answer 13

Thanks again! :)

Answer 14

yeah, thats correct

Answer 15

welcome ^_^

Answer 16

Have a nice day/night! ^^

Answer 17

you too :)

Answer 18

Thank you for the medal! Much appreciated!