470000 is the most reasonable
Answer:
B. Solve each equation for a variable
Is (-1,13) a solution of the system: Yes it is x =1, y= 13
Step-by-step explanation:
-4x=30-2y
- 15 = - 2y + 11x
-4x=30-2y
-2y+4y = -30-------------------i
- 2y + 11x= - 15 ---------------ii
make x the subject of formula in equ i
-4x=30-2y
x= (30-2y)/-4
insert x= (30-2y)/-4 in equ ii
- 2y + 11x= - 15
-2y+ 11((30-2y)/-4)= -15
-2y+(330-22y)/4 = -15
-8y+330-22y/4 = -15
-8y-22y+330/4= -15
cross multiply
-30y+330 = 4x-15 = -60
-30y = -60-330
-30y =--390
y= -390/-30 = 13
if y = 13
x = (30-2y)/-4 = (30-2x13)/-4 = (30-26)/4 = 4/4 = 1
x=1 , y=13
10 + (-34) is the same as 10 - 34, for adding a negative number is the same as subtracting the two numbers
remember, one positive and one negative = negative (as it is the same as +1(-34)
B is your answer
Answer:
total amount of tickets for the rides: 21+32+31=84
total amount of tickets she has: 23-6= 17
total amount of tickets she needs left: 84-17=67
answer: 67
Hope this helped :) have a great rest of your day or evening!!!
