Answer:
w=40
Step-by-step explanation:
120*1/3=40
Therefore, w=40
Answer:
80 hours for 2 workers to build 8 cars
Step-by-step explanation:
2 cars / 8w *5 hr = 2 cars / 40 hrs 1 car takes 20 hrs
8 cars * 20 hours = 160 hours required
two workers split this time 160/2 = 80 hours
Easy
remember
x^-m=1/(x^m)
so
f(-1)=4*7^-1=4*(1/(7^1))=4*(1/7)=4/7
f(2)=4*7^2=4*49=196
Replace the x and y and the answer would be A
All you have to do is count the number of perfect squares less than 200.
Or you can take the square root of 2000 to get 44.721. So 44 Positive integers.
