Answer:
180 ft
Step-by-step explanation:
We are working to find the perimeter here. Let x represent the length of the room.
We know that the formula to find the perimeter of something is 2L + 2W = P. Here, we know the required perimeter and the width of the room.
Our equation is now: 2x + 2(70) = 500
Now we have to find x, we'll start by multiplying 70 by 2.
2x + 140 = 500
Now we can solve for x:
Subtract 140 from both sides
2x = 360
x = 180
The length of this room is 180 ft.
2(180) + 140 = 500
360 + 140 = 500
The length of would be 9 and the width 7, resulting in an area of 63
Answer:
The answer is b
Step-by-step explanation:
if 71 paying passengers are all children, they should pay 5* 71= $355 in total.
$439 is paid so adults pay $439-$355 = $84 more than money paid by same number of children.
each adult pays $8-$5=$3 more than each child
so there are $84/$3= 28adults
and 71-28= 43 children
Length is always measured in linear units. Angles may be measured in a variety of units, including degrees.
Selection A is appropriate.
