First, you would add 9x to both sides so that you get:
x^2 + 9x + 20 = 0.
Then, you want to factor. You want coefficients of x that add to 9 and have the constants add to 20:
(x + 5) * (x + 4) = 0
The answer is (C).
101 + d = 180
d = 79
91 + c = 180
c = 89
95 + a = 202
a = 107
b + 107 = 178
b = 71
Answer:
1450$
Step-by-step explanation:
follow the basic steps to calculate the mean.
1. add up all of the numbers in the data set. in this case you would add up the all of the money since the question is asking for that.
2. divide by the amont of numbers there are.
1400+800+2150=4350
4350÷3=1450
hope this helped :)
Forty three million, eighty thousand and seven hundred.
