y-3-(-12)≥0
y ≥ -9
y + 9.000 ≥ 0
y ≥ -9
I hope this helps!
9514 1404 393
Answer:
- airplane: 225 mph
- wind: 45 mph
Step-by-step explanation:
The average speed with the wind is (540 mi)/(2 h) = 270 mi/h.
The average speed against the wind is (540 mi)/(3 h) = 180 mi/h.
Let a and w represent the speeds of the airplane and wind, respectively.
a + w = 270 . . . . speed with the wind
a - w = 180 . . . . speed against the wind
2a = 450 . . . . . . sum of the two equations
a = 225 . . . . . . divide by 2
w = a -180 = 45
The speed of the airplane is 225 miles per hour; the speed of the wind is 45 miles per hour.
Answer:
x= c - b / A
please look at the step by step explanation to better understand :)
Step-by-step explanation:
subtract b from the left side and right side
so you are left with Ax = c - b
divide what number c - b is by A
and you are left with x= c - b / A
Answer:
c.
Step-by-step explanation:
1.25x5=6.25
6.25+1.37=7.62
Step-by-step explanation:
Simplify fractions on fractions
Multiply by the inverse of denominator
Simplify fractions on fractions
Multiply by the inverse of denominator
Add both sides
