25 Planes can take off. Divide 60 (minutes) by 12 and it should give you 5. Take that five and multiply it by the number of hours they are asking for (5). 5*5=25.
Answer:
T = Toby
T=(23+4)/3
Step-by-step explanation:
If Jennifer’s age is 4 less than 3 times Toby’s age then Jennifer’s age by three,
T=(23+4)/3
and 3 times that, so we divide
T=(23+4)/3
Then Toby is 9 years of age, and shouldn’t be driving.
Answer:
Step-by-step explanation:
Putting values of x in equation
Y = 4(-3) - 4
= - 12 - 4 = - 16
Y = 4(-2) - 4
= - 8 - 4 = - 12
Y = 4(-1) - 4
= - 4 - 4 = - 8
Y = 4(0) - 4
= 0 - 4 = - 4
Y = 4(1) - 4
= 4 - 4 = 0
Y = 4(2) - 4
= 8 - 4 = 4
Y = 4(3) - 4
= 12 - 4 = 8
Answer:
420 miles.
Step-by-step explanation:
You would have to be infinitely far away from a sphere in order to see exactly 50% of its surface all at the same moment. Using simple geometry, you can prove that an observer that is a distance d away from the surface of a sphere with radius R can only see a percent area A of the sphere's surface as given by the equation:
A = 50%/(1+R/d)
Where A is the area seen,
R is the earth's radius 4000 miles
And D is the distance above the earth 200 miles
50% = 0.5 in fraction
Substituting values we have
A = 0.5(1 + 4000/200)
A = 0.5(1 + 20) = 0.5 x 21
A = 10.5%
10.5% of 4000 miles = 420 miles.
Note that the chances of a head and a tail appear in a single toss is 1/2
(1/2)^3 =0.125
