No its not possible I cant explain right now because I'm in class but I will later
30b + 100u = 900
5b + 25u = 200....multiply by -6
------------------
30b + 100u = 900
-30b - 150u = - 1200 (result of multiplying by -6)
------------------add
-50u = - 300
u = 6 <== upgrated phones sold
30b + 100u = 900
30b + 100(6) = 900
30b + 600 = 900
30b = 900 - 600
30b = 300
b = 10 <== basic phones sold
C because it has the x variables in the numerator. This is wrong because the x axis represents horizontal movement and slope is rise over run, not run over rise
Answer:
45 children
Step-by-step explanation:
30% of 150=45
Take the amount for the case and divide by 12
8.64/12=0.72
0.89-0.72= 0.17 saved per each quart
