Step-by-step explanation:
y is directly proportional to x
y = kx
k represents the constant of proportionality.
when y = 20 and x = 8:
20 = 8k
Dividing both sides by 8 gives:
k = 2.5
Hence when x = 3.
y = 2.5(3)
y = 7.5 .
Answer:
The answer is "
".
Step-by-step explanation:
Let add equation 1 and 2:
Using formula:

convert to polar coordinates


Answer:
paid to buy = 1850
profit = 10%
Step-by-step explanation:
2035 = 110%
1% ~ = 18.5
100% = 1850
2035 - 1850 = 185
185 / 1850 * 100 = 10% profit
Answer:
oop
Step-by-step explanation:
4x+4y-4=-12-4
then you get the answer for x
Answer:
Definatley A
Step-by-step explanation: