Answer:
x=35
Step-by-step explanation:
5(x + 20) = 7x + 30
5x+100= 7x+30
70= 2x
x=35
I don't know algebra 1 sorry but i can do some pre-algebra and calculus
T represents the number of hours at speed of 25 mph, while m represents number of hours at 45 mph
22 is 44% of 50 here is ure answer
P = 2(l+w)
substitute for P and l
12+8y = 2 (4x-2y+w)
distribute
12+8y = 8x -4y +2w
solve for w
subtract 8x from each side
12 +8y -8x = -4y+2w
add 4y to each side
12 +12 y -8x = 2w
divide by2
6 +6y-4x =w
the other side is 6+6y-4x