Answer:
<u><em>85 degrees</em></u>
Step-by-step explanation:
A triangle's angles must add up to 180 degrees.
50 + 45 = 95
180 - 95 = 85
x = 85
Answer:
Answer is 540 mph (miles per hour)
Step-by-step explanation:
by diving 8100 by 15, you get a quotient of 540
1 car - 4 wheels
1 motorcycle - 2 wheels
x - number of cars
y - number of motorcycles
so, there are 70 vehicles: x + y = 70
and all togeather they've got 258 wheels: 4*x + 2*y = 258
because each car has 4 wheels, so all car wheels = 4*x,
likewise 2*y for motorcycles
x + y = 70 /* 4
4 x + 2y = 258
4 x + 4 y = 280 (R1)
4 x + 2y = 258 (R2)
2y = 22 /:2 it is R1 - R2
x = 70 - y
y = 11 /motorcycles
x = 70 - 11 = 59 /cars
check:
59 + 11 = 70 ok
59 * 4 + 11 * 2 = 236 + 22 = 258 ok
Answer:
-2
Step-by-step explanation:
Rise over run
Pick a point and check how much it goes vertically, then divide it by how much it goes horizontally.
7 1/5 - 2 3/5 =
36/5 - 13/5 =
23/5 or 4 3/5 <==