Answer:
-1/2
Step-by-step explanation:
Answer:
D.(1,1)
Step-by-step explanation:
Just plug in each pair of values in the multiple choice answers for x and y.
If we plug in (1,1)
The equation is
4(1) +5(1) ≤ 20
4+5≤ 20
9≤ 20
Since 9 is less than 20 we know statement is true, so we know (1,1) is a solution.
If we were to plug in any other choice like (0,5), the right side of the equation would be greater than 20 and the statement would not be true.
4 goes into 20 5 times,
so you have 1/5 if you reduced it
1/5 is .20 or 20%
to check your work or for an easy way to do it, 1 divided by 5 or 4 divided by 20 which is also .20 or 20%
Answer:
R=3.897
Step-by-step explanation:
Given the magnitude measured by the Ritcher scale is given as;
R = 0.67log(0.37E) + 1.46 where E= is the energy (in kilowatt hours)
If E=1,770,000 then
R= 0.67log(0.37*1770000)
R=0.67log(654900)
R=0.67*5.81617
R=3.897
300 miles / 5 Hrs = 60 MPH
60 MPH * 7 HR = 420 Miles