Answer:
This is not possible because the selling of number of AA batteries cannot be negative.
Step-by-step explanation:
Let us assume that the number of AAA batteries sells be x .
Let us assume that the number of AA batteries sells be y.
As given
Target sells AAA batteries for $1.10 and AA batteries for $0.50. They sold 350 total batteries earning a total of $560.
Equations becomes
x + y = 350
1.10x + 0.50y = 560
Simplify the above equation

110x + 50y = 56000
Two equations becomes
x + y = 350
110x + 50y = 56000
Multiply x + y = 350 by 50 and subtracted from 110x + 50y = 56000 .
110x - 50x + 50y - 50y = 56000 - 17500
60x = 38500

x = 641 .6 (Approx)
Put this value in the equation x + y = 350 .
641.6 + y = 350
y = 350 - 641.6
y = -291.6
This is not possible because the selling of number of AA batteries cannot be negative.
Cos t (sec t - cos t)
= cos t (1 / cos t - cos t)
= 1 - cos^2 t
= sin^2 t (using the identity sin^2 t + cos^2 t = 1 )
Answer:
y=-15
Step-by-step explanation:
...
Answer and step-by-step explanation:
Becasue Manuel rode 8 miles in 40 minutes so he rode 1 mile in:
40 / 8 = 5 minutes
Because Eliza rode 5 miles in 30 minutes so she rode 1 mile in:
30/5 = 6 minutes
So manuel rode faster than eliza becasue:
- Manuel rode 1 mile in 5 mins
- Eliza rode 1 mile in 6 mins
So manuel rode faster than eliza
Hope this help you :3