Answer:
x=5
Step-by-step explanation:
let a unknown no. be x
2x-6=4
2x=6+4
2x=10
x=10/2
x=5
Answer:
see answers below to match them
Step-by-step explanation:
12r + t - 4r + 6t
=12r - 4r + t + 6t
=8r + 7t
(12r+2t) - (4r+10t)
=12r + 2t - 4r - 10t
=8r - 8t
=8(r-t)
12(r+t)-6(r+t)+4(r+t)-2(r+t)
=(12-6+4-2)(r+t)
=8(r+t)
Answer:
The angle vertical to 64° is also 64°
The angle on the upper right side is 60°
The angle on the lower left side is 45°
Step-by-step explanation:
180 - 64 - 56 = 60°
180 - 64 - 71 = 45°
x = hours
car 1 left an hour before car 2 so you have 55(x+1)
car 2 = 75x
add them together to equal miles driven:
55(x+1) + 75x = 380
55x+55 + 75x = 380
combine like terms:
130x+55 = 380
subtract 55 from each side:
130x = 325
divide both sides by 130
x = 325 /130 = 2.5
x = 2.5 hours
so 2.5 hours
