It went up 125% or 25 percent more
Y= -75x +1725
y= -75(20) +1725
y = -1500 + 1725
y= 225 = range
225= -75x +1725
225 - 1725= -75x
-1500=-75x
-1500/-75 = -75x/-75
x = 20 = domain
Answer:
Carol has only 20p and 10p coins in her purse.
She has three times as many 20p coins as 10p coins. If Carol has £4.20 altogether, how many 20p coins does she have?
Answer:
18.446
Step-by-step explanation:
The value of that fraction depends on the value of 'x'. Whatever 'x' happens
to be at the moment, the fraction is equal to about 61.1% of it. And if 'x' ever
changes, then the value of the fraction also changes, immediately.
