The main idea is let y be a subject and bring in the first equation and now it just have one letter in first equation, when you resolve the value of x, finally put the value of x into first or second equation then you can calculate what the value of y
Answer:
A.
Step-by-step explanation:
Q1 = 4.6
Q2 = 5.5
Q3 = 5.95
take care
-kitten
D= -10
explanation:
-90/9=-10
Answer:
c
Step-by-step explanation:
to much working out but just as a summary section of working out
3*15=45
300+45=$345(1st year)
345+300=645
6.45*15=96.75
645+96.75=$741.75(2nd year)
keep on doing that until you beat 2 in list and use common sense to realise that (d) is too big, and (b, a) is too small so (c) is the correct amount. (this is quicker than actually doing all 20 years)
Answer:
605100
Step-by-step explanation:
6.051*10^5=605100