8/12= 4/6 = 2/3 hope this helps! thank you!
If there are 4 friends and 1 flashlight and only two of them can pass at a time then
that will mean that has to pass 2 times per person and the last time only one
for 32 will be 31*2 + 1 = 63
in a general matter will be
T = (X-1)*2 + 1
T = 2X - 1
so for 3 friends will be (this does not take into consideration the flashlight guy)
T = 3*2 - 1 = 5 times
Answer:
$0.1500
Step-by-step explanation:
Amount = Principal * (1 + rate/number of compounds)^(number of compounds * number of years) = 500*(1+0.05/12)^(4*12) = 610.45
Answer:
there were 20 two point questions =
there were 30 five point questions
Step-by-step explanation:
Brandon took a 50-question exam worth a total of 160 points. There were x two-point questions and y five-point questions. How many of each type of question were on the exam?
x + y = 50 eqn 1
2x + 5y = 160 eqn 2
this can be solved using simultaneous equation
multiply eqn 1 by 2
2x + 2y = 100 eqn 3
subtract eqn 3 from 2
3y = 60
y = 20
Substitute for y in eqn 1
x + 30 = 50
x = 20
