12/7 simply exchange the denominator and the numerator
Answer:
2x + 2y + 2
Step-by-step explanation:
x+ 2y + x +2 (combine like terms)
x + x + 2y + 2
2x + 2y + 2
55mph.
you can solve it using the equation distance=speed x time
your total distance is 714, and you have 2 trains, one traveling some speed, x, and one traveling x+8, both traveling for 7 hours.
your equation would look like this

and you can then solve for x, which would be 47. this is the speed of the slower train, but 47+8=55 with give you the speed of the faster train.
81 square inches
9*9*9=729
729/9(height of cube)=81(length and width of cube=area of cube)
Answer:
68/100
Step-by-step explanation:
answer is 68/100