Which value of x satisfies both 3x + y = 9 and 3x − 5y = 15? . a) \[\frac{ 10 }{ 3 }\]. b) \[\frac{ 2 }{ 3 }\]. c) \[-1\]. d) \[0\].

Option A. is the correct option.

Step-by-step explanation:

Two equations are 3x + y = 9 ------------(1)

and 3x - 5y = 15 ----------(2)

we have to calculate the value of x common for both.

We multiply equation 1 by 5 and add it to equation 2

15x + 5y = 45

3x - 5y = 15___

18x = 60

x =

Therefore option A. is the answer.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

this is false ^.^ lol