Cos 17pi/4 = cos pi/4 because 17pi / 4 = 16pi/4 + pi/40
cos pi/4 = 1 / sqrt2 or 0.7071 to nearest 10,000 th
Let M = #miles driven
Plan 1: .50M + 70 = total cost
Plan 2 .70M = total cost
To know how far she would drive to have an equal cost for either plan just set the equations equal to each other
.70M = .50M + 70
subtract .50M from both sides
.20M = 70
M = 70/.20 = 350 miles
Check the answser:
Plan 1: .50(350) + 70 = 175 + 70 = $245
Plan 2: .7(350) = $245
they are equal so our answer checks as correct
Answer:
25%
Step-by-step explanation:
Step one:
A store normally sells certain dress for $160 during a special sale
the store reduces the price of the dress to $120
Step two:
Percent reduction= change in price/initial price *100
Percent reduction= 160-120/160 *100
Percent reduction= 40/160*100
Percent reduction==0.25*100
Percent reduction=25%
Yea it dose but it still doesn't work out well
Answer:
H = 15
Step-by-step explanation:
If you need an explnation, I can provide it if needed! Cheers!
