By Cramer's rule, the solution can be found as the ratio of determinants. The numerator is the matrix with the right-side constants replacing the coefficients of the variable of interest. The denominator is the matrix of coefficients.
The solution is ...
... B. (1, 4)
You haven't shared "the two patterns below."
Let me guess: 5+5 = 10 and 10+15 = 25. Thus, 5+5+10+15 = 10+25 = 35.
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Answer:
52
Step-by-step explanation:
Let "a" represent the number of adult tickets sold. Then revenue was ...
9.40a +5.40(151 -a) = $1023.40
4.00a + 815.40 = 1023.40
a = (1023.40 -815.40)/4.00 = 208/4 . . . . . subtract 815.40, divide by 4
a = 52
52 adult tickets were sold that day.
Answer:
Step-by-step explanation:
We know that x=3 is the solution to x-3=0 and x=-4 is the solution to x+4=0, thus: