Answer:
1680
Step-by-step explanation:
Since there are 4 places (frames) to put up each poster, we think individually:
In the first place they can place ANY OF THE 8 POSTERS
In 2nd place, they can place ANY OF THE REMAINING 7 POSTERS
In 3rd place, they can place ANY OF THE REMAINING 6 posters
and
in last place, they can place ANY OF THE REMAINING 5 posters
The number of ways is the multiplication of them all, so:
8 * 7 * 6 * 5 ways = 1680 ways
Since this is a ratios and proportions problem, you would set up the equation like this:
1/50,000 = x/8 x is the length of the distance on the map
After that, you cross multiply and you will get 50,000x=8
You then solve for x to get 0.00016
Answer:
a) 1:3
b) 9:225,000
Step-by-step explanation:
A)
1 hour is equal to 60 minutes. Written as a fraction it would look like
which would be equal to 
, or 
B)
Just multiply both sides of the ratio by 9, you will get 
Hope I helped, please mark as brainliest! Have a good day!
428 = c + 62 I think this is right I’m not so confident
area of playground= 9×15= 135m^2
area of lawn= 3×4=12m^2
total flooring area= 135-12= 123m^2
cost=36×123=$4428
