Answer:
0.75 sec
Step-by-step explanation:
we have the equation
------> equation A
------> equation B
Using a graphing tool
The solution of the system is the intersection point of both graphs
the intersection point is (0.75,370)
that means-------> For t=0.75 sec , d=370 ft
see the attached figure
Answer:
r = 2
Step-by-step explanation:
Answer:
f = 43/40 or 1 13/30
Step-by-step explanation:
60f=86
Divide each side by 60
60f/60=86/60
f = 86/60
Divide the top and bottom by 2
f = 43/30 or as a mixed number 1 13/30
Answer:
8(4x+3)<u>></u>-1+7x
32x+24<u>></u>-1+7x
32x-7x<u>></u>-1-24
<u>25x</u><u> </u><u>></u><u> </u>-<u>25</u>
25. 25
x <u>></u> -1
Answer:
Number of elves= 80 elves
Step-by-step explanation:
If 9 elves can pack 27 toys per hour. This means that each elf packs 3 toys per hour:
Toys per elf= 27/9 = 3
<u>Now, we need to determine the number fo elves needed to pack 240 toys per hour:</u>
Number of elves= number of toys/toys per elf
Number of elves= 240/3
Number of elves= 80 elves