Answer: there are 4 solutions
x = -2
x = -1/2 = -0.500
x =(3-√5)/2= 0.382
x =(3+√5)/2= 2.618
Step-by-step explanation:
S + B = 33
S - B = 2
___________
2S = 35
S = 17,5
B = 15,5
Answer: 57 pennies and 63 quarters
Answer:
5x and -7x
they both end in the variable "x"
There are a total of 2 hours and 50 min.
1 hour = 60 min
60 x 2 = 120 min
60 x 3 = 180 min - too much
so take away 10 from 180 min to get 170
