Answer:
Let x = # of commercials
y = # of movies
<u>System of Equations:</u>
x + y = 90
40x + 110y = 500
Step-by-step explanation:
We have to set our variables before we start solving. After setting the variables, we can set up the equations. If x = # of commercials and y = # of movies, then we can assume x + y = 90, as there have been a total of 90 commercials and movies played altogether. Then, we know that their worth is $500, so the price of all the commercials played and the price of all the movies played (which is 40x + 110y) sum to $500.
(I've just answered this question from your previous post. Unless my answer was wrong, I don't see why you would repost the exact same question.)
Answer:
45 square feet
Step-by-step explanation:
we know that
The volume of the pedestal (rectangular prism) is given by the formula

where
B is the area of the rectangular base of pedestal
we have

substitute the given values in the formula and solve for B


The playground is a square, so there will be a right triangle formed by diagonal and two sides. So sides length²*2=diagonal length². So the side length is 38.9 meter.
OHHHH I REMEMBER THOSE ITS SO EASY GO TO www.anglesmatter.com and type in that lesson and it shows how to do the work and gives you the answer