1) add 7 to both sides and get -5....so -5 >x
2) add 7 to both sides.....so get b<-5
3) add 17 to both side...so get z>1
-4(-5-b)=1/3(b+16) Multiply both sides by 3 to get rid of the fraction
-12(-5-b)=b+16 distribute the -12 to get rid of the parenthesis
60+12b=b+16 get the b on the left side and non b values to the right side
11b=-44 solve for b
b=-44/11 simplify the fraction
b=-4
3/5(t+18)=-3(2-t) multiply both sides by 5/3 to get rid of thefraction
t+18=-5(2-t) distribute the -5 to get rid of the parenthises
t+18=-10+5t get the t to the left side and non t values to the right
-4t=-28 solve for t
t=7
1 hour = 60 min
0.5 hours = 60 * 0.5 = 30 min.
Same slopes, different constant, so parallel lines.
Answer: ... parallel because their slopes are equal. Last choice.
It's really just knowing how to use fractions.
Say you have 8 jelly beans in a baggie. 5 are yellow and 3 are green.
What is the likelihood of pulling a green one out? Not likely.
What is the likelihood of pulling out a white one out? Impossible.
Are you getting it? Or do you need more help? :)
