Lets say W=Wesley, M=Max, and J=Jared.
So your equations are M=2J, 2M=W, and M+J+W=21days(3 weeks)
So substituting M and W into M+J+W=21 gives you 2J+J+2M=21, substitute M again, to get 2J+J+4J=21 so you get 7J=21 so J= 3 days. Using J=3, substitute in to find M, using M=2J, so M=2(3) so M=6 and using that, substitute into 2M=W, so 2(6)=W so W=12. And 12+6+3=21 to check.
Answer:

Step-by-step explanation:
Given

Required
Find actual distance when map distance = 6 inches
Substitute 6 for Map in 

Express as fractions


Cross Multiply



<em>Hence, the actual distance is 480 miles</em>
Answer:
see attached diagram
Step-by-step explanation:
A dilation with a scale factor of
centered at the origin has a rule:

Then the image of the triangle ABC is triangle DEF(see attached diagram) with coordinates