They are one dimensional
And they connect two endpoints
Hello,
|x+4|=3x-5
if x+4>=0 then
|x+4|=x+4
x+4=3x-5
2x=9
x=9/2
else
x+4<0 : x<-4
|x+4|=-(x+4)
-(x+4)=3x-5
-x-4=3x-5
4x=1
x=1/4 : to exclude since x<-4
end if
Only one solution : x=9/2
ANSWER B.
Answer:
9
Step-by-step explanation:
1 feet is 12 inches, so 12 feet is 12 * 12 = 144 inches.
If studs are placed 18 inches apart, in 144 inches, there will be:
<u><em>But remember, there is a stud at the very beginning (at 0 feet).</em></u>
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So in total there are going to be 9 studs
Let d be distance travelled when they are level , and t = time that nora took to get level with mason
for Nora
6 = d/t
d = 6t
for Mason
5 = d / (t + 35)
d = 5 ( t + 350
so 6t = 5(t + 35)
solve for t
