1/3 − (−1 /5 ) a. -1/2 b. 1/4 c. 2/15 d. 8/15

Hello there! :)

8/15

*The answer must have a fraction.*

Step-by-step explanation:

First, apply by the rule of fractions.

Then, multiply by the numbers from numerator to denominator.

When if denominator are equal, it combine the fraction.

And finally add by the numbers on numerator.

Hope this helps!

i am sorry it just submitted an answer but the answer is 365 boys. hopes this

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4