x => Hamburgers
y => Hot dogs
x + y = 26
3.5x + 2y = 70
-2x - 2y = -52
3.5x + 2y = 70
-----------------------
1.5x = 18
x = 18 / 1.5 = 12
y = 26 - 12 = 14
They sold 12 hamburgers and 14 hot dogs
Answer:
2 - i
Step-by-step explanation:
If i in the expression f(i) is an imaginary number, then
f(i) = i^3 - 2 i^2 = -i - 2*(-1) = 2 - i
Answer:
options: 83/90 92/99 83/9 83/100. 0.92 = 92 / 100
Step-by-step explanation:
Answer:
equation: c = 4.80h + 18.30, cost for four hours: (4, 37.5)
Step-by-step explanation:
the equation is c = 4.80h + 18.30 because 18.30, the initial cost, is the y-intercept and because each hour costs $4.80. the cost for four hours would be (4, 37.5) because it costs $37.5 to skate for four hours.
I believe it is linear because both numbers on top and bottom go up the exact amount from the beginning to end
