Answer:
13 to 25
13:25
Step-by-step explanation:
All of these show the ratio 13/25
Hope this helps!
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
2,3,5,7,11,13,821, and 823
please can i have a brainliest
Answer:
88
Step-by-step explanation:
hello,
we need to replace x by 6 and y by -10 so it comes
3*(6)-7*(-10)
= 18 + 70 = 88
hope this helps
I do not see the exact value, but this is the formula: