Let the speed of plane in still air be x and that wind be y
therefore:
x+y=490
x-y=390
next we solve for the values of x and y, first we add the above equations. This will give us:
2x=880
x=880/2
x=440 miles per hour.
substituting the value of x in one of the equations and solving for y we get:
440+y=490
y=490-440
y=50 miles per hour
Pedro's language arts homework took him 38 minutes to do
Answer:
y=2
Step-by-step explanation:
With the given values in the equation for a straight line (y=mx+c)
where x and y are the graph coodinates
m is the gradient
and c is the y intercept
substituting the given values into the equation gives
y=2
given that 0 multiplied by anything is 0 so the mx preportion of the equation is cancelled
Answer: {0, 5, 7}
Step-by-step explanation:
{0, 5, 7}
13. (6-9)^-3= -1/27 or -0.04(rounded to nearest hundredth.
15. 4^-1+(5-7)^-2= 1/2 or .5