$58.50
30% of 45 is 13.5, and 13.50 plus 45 is 58.50
Answer:
Step-by-step explanation:
Distribute: 6(4-z) expands to 24-6z
24-6z=2z: Add 6z to both sides to get 24=8z
Divide both sides by 8: z=3
Easy, 4 multiplied by 19.76 is 79.04
Have a FANTASTIC rest of your day
9/10/5 9/10*1/5=9/50 miles
How many different three colour flags (tricolors) can be designed using
green, blue, red, yellow and black stripes if all three colours must be
different?
6P3 = 6!/(6 - 3)! = 6!/3! = (6 x 5 x 4 x 3 x 2 x 1)/(3 x 2 x 1) = 720/6 = 120 flags.
How many of them contain a red stripe?
The remaining two colours can be arranged in 5P2 = 5!/(5 - 2)! = 5!/3! = (5 x 4 x 3 x 2 x 1)/(3 x 2 x 1) = 120/6 = 20ways
The red stripe can arranged in 3 ways
Therefore, number of flags having red stripe is 20 x 3 = 60 flags.