I’m pretty sure it’s x=10 because
8x + 50 = 130
So we would subtract 50 from both sides so it would be 8x = 130 - 50 then it would give us 80 so now we have 8x =80, now we will need to divide the 8 on both sides to get x, so 80/8 equals 10
I need a little more to work with
Answer:
30:1
Step-by-step explanation:
45*12 = 540
540/18 = 30
So 3:2
and there are 10 south american butterflies then it would be 10/3 =? and that number *2
Use the Pythagorean therm , you know the a^2+b^2=c^2
