Plug them in:
x + 5y = 18
x - 3y = 10
F. (1,13)
G. (13,1)
H. (-2,4)
J. (-2,-4)
1 + 5*13 = 18 is obliviously not true so that takes out the first option.
13 + 5*1 = 18 : This is true but we have to check the next one.
13 - 3*1 = 10 : This is also true so we know this is the answer. We don't really need to check the other 2 but u can if u want to.
Hope that helped :) <span />
Double the first equation: 4x+14y=-2 and subtract the second: 17y=17, so y=1. 2x=-7y-1=-7-1=-8, so x=-8/2=-4.
The answer is x=-4 and y=1.
Answer: 0.628
Step-by-step explanation:
Probability of U.S. smartphone owners have made an effort to limit their phone use in the past : p = 0.4702
Sample size : n= 54
Mean : 
Standard deviation:
The probability that between 22 and 29 (inclusively) will have attempted to limit their cell phone use in the past will be :
Hence, the required probability = 0.628
Answer:
Your answer is going to be 14.54. 16.99 off of 7% sales tax is $18.18, but 20% off is $14.54.
Answer:63
Step-by-step explanation:
9×(5+2)=63 ✨
(9×4)+(9×3)=63✨
