Answer:
y = - x + 4
Step-by-step explanation:
gradient = change in y/change in x
1-6/3--2= -5/5 = -1
y= -x + c
1=-3+c
c=4
equation of line =
y= -x + 4
Answer: The missing number is 55
The denominators are 20 and 100. We multiply by 5 to jump from the smaller denominator to the larger.
Do the same for the numerators
11*5 = 55
Or you can solve the proportion below for x
11/20 = x/100
11*100 = 20*x
1100 = 20x
20x = 1100
x = 1100/20
x = 55
This can be done without exponential equations.
It doubles every 12 years so it has doubled in price
5,000 * 2 = 10,000
After 36 years the value has increased 8 times
5,000 * 8 = 40,000
After 48 years the value has increased 16 times
5,000 * 16 = 80,000
16 has several factors, BUT bear in mind that 17 is a prime number, it has no factors other 1, so 16/17 cannot be simplified,
