PEMDAS
parenthases first
1/4+5/4=6/4=3/2
we now havve
3/2 times 2+ 3/4
multilication
3/2 times 2=6/2=3
now we have
3+3/4=12/4+3/4=15/4
15/4 or 3 and 3/4
Answer:
all work is pictured and shown
B y=m+6 because there age is 6 years apart
You can solve this with proportion
1) For 2h
9/2 mile : 3/4h = x mile : 2h => (3/4)x=(9/2)*2 => (3/4)x=9 => x=9*(4/3)= 12miles
For 3h => (3/4)x=(9/2)*3 When we divide equation with 3 we get
x/4=9/2 => x=(9/2)*4=18 miles
2) 2 combine : 320 acres = 7 combines : x acres +: 2x= 320*7 =>
x= (320*7)/2 = 160 * 7 = 1120 acres
Good luck!!!