Answer:
hello
Step-by-step explanation:
To justify the yearly membership, you want to pay at least the same amount as a no-membership purchase, otherwise you would be losing money by purchasing a yearly membership. So set the no-membership cost equal to the yearly membership cost and solve.
no-membership costs $2 per day for swimming and $5 per day for aerobic, in other words, $7 per day. So if we let d = number of days, our cost can be calculated by "7d"
a yearly membership costs $200 plus $3 per day, or in other words, "200 + 3d"
Set them equal to each other and solve:
7d = 200 + 3d
4d = 200
d = 50
So you would need to attend the classes for at least 50 days to justify a yearly membership. I hope that helps!
Answer:
5
Step-by-step explanation:
Let's take the numerator first
3 1/2 - 9 3/4
Convert to improper fraction
7/2 - 39/4
Find the LCM
= -25/4
Now let's take the denominator
-2.5
Convert to fraction
-5/2
Combine the two parts of the fraction
-25/4 / (-5/2)
This becomes;
-25/2 * -2/5
= +5
2.z²-z=0
3.m²+13m+40=0
4.z²-3z=0
5.q²+7q=0
6.k²+2k=0
7.x²-3x-70=0
8.q²+7q-60=0
9.z²+9z-36=0
10.d²-13d+22=0