7, 14 would be it but you have to divide the whole equation by 2 to get the y alone
Answer:
The faster train goes 60mph
Step-by-step explanation:
s= speed
s+20 is the faster train.
Then you are given:
200/s+s+20=2
200=2*(2s+20)
4s+40=200
4s=160
s=40 is the slower train
40+20= speed of faster one
s=60 ;)
She earns 32.40 for working 4 hrs.....32.40/4 = 8.10 per hr
y = 8.10h...where y is the amount of money earned and h is the number of hrs worked
$51-$16=$35 (cost of 10 scented soaps)
$35 ÷ 10 = $3.50
ans: $3.50
