Perimeter of a rectangle can be represented by 2* length + 2 * width
We can represent the width with the variable x
We can represent the length by the expression 3x-1
So, now we can make a forumla and solve
2(3x-1) + 2(x) = 30
6x-2+2x = 30
8x = 32
x = 4 is the width of the rectange.
Now we find the length
3(4)-1
11 = Length
155/(2 1/2)=62
Sam drives at 62 m/h
62*4=248
Sam would drive 248 miles in 4 hours.
Hope this helps :)
Answer:
,-3
Step-by-step explanation:
its simple really the lobster will molt 4 times every year so take 12 times 4 to get 48. to get how many times a lobster molts in one year divide 20 by 5 to get 4
hope this helps :)
