Answer:
QS = 42 units
Step-by-step explanation:
8x - 51 = 3x - 6
5x = 45
x = 9
(8x - 51) + (3x - 6) = QS
72 - 51 + 27 - 6 = QS
42 = QS
Answer:
4a²+62a+49
Step-by-step explanation:
since (a+b)^2= a^2+2ab+b^2
(3a +7)² – 5a(a-4)
simplify the equation first
9a²+42a+49-5a²+20a
= 4a²+62a+49
Answer:
8 movies or video games.
Step-by-step explanation:
Let x be the number of movies or video games on rent.
We have been given that Omar has a choice of belonging to a video club with a monthly fee of $12 and $1-a-day rental fee for any movie or game. We can represent the charges for x movies or video games for a member of club as: .
Omar can be a non-member and pay $2.50-a-day rental fee for any movie or game. We can represent the charges of a non-member for x movies or video games as: .
To find the number of movies for one day for the cost to be equal we will equate our both expressions.
Therefore, Omar must rent 8 movies or video games for one day for the cost to be equal between membership and non-membership.
By renting 8 movies or video games charges for membership will be: 8+12=20.
By renting 8 movies or video games charges for a non-membership be: 2.5*8=20.
Hence charges of renting 8 movies or video games are same for both membership or non-membership.
Answer:
2.48×10^13 miles
Step-by-step explanation:
There are about (365.25 days)(86400 seconds/day) = 31,557,600 seconds in one year. There are 1609.344 meters in one mile. So, the conversion can be written as ...
(4.22 ly) (3×10^8 m/s) (3.15576×10^7 s/yr) / (1.609344×10^3 m/mi)
= 4.22×3×3.15576/1.609344×10^(8+7-3) mi
≈ 24.8×10^12 mi
4.22 light years is about 2.48×10^13 miles
Answer:
8.57142857143
Step-by-step explanation:
i guess just round it
hope this helps