Hello,
8*<-5,-9>-2*<6,8>=<-40,-72>+<-12,-16>=<-52,-88>
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Answer:
distance down wind
d - 6 = distance back
time = distance ÷ speed
x = d/20
x = (d - 6)/(16)
so d/20 = (d - 6)/16. Cross multiply
20d - 120 = 16d
-120 = -4d
30 = d so the whole trip assuming the bird gets back to the starting point is 60 miles
Answer:
it B. 7
Step-by-step explanation:
(-2)(4)-(3)(-5)
=-8-(3)(-5)
=-8-(-15)
=7
