the answer to that is -120
Step-by-step explanation:
-120+74=-46
Let us say that s is the speed of the plane and x is the
speed of the headwind so that:
s – x = (320 / 2) = 160
s + x = (320 / 1.6) = 200
So we got two equations:
s – x = 160
s + x = 200
Adding the two equations:
2s = 360
s = 180 mph (speed of plane)
So x is:
x = 180 – 160
x = 20 mph (headwind)
Answer:
Step-by-step explanation:
Step 1
Find the value of x
we know that
In an inscribed quadrilateral the opposites angles are supplementary
so
In this problem
substitute the values and solve for x
step 2
Find the measure of angle B
substitute the value of x
Answer:
54
Step-by-step explanation:
multiply by 1.8 and add 32
12*1.8=21.6
21.6+32=53.6
53.6 rounded = 54