A function is defined as a set of points for every x-value, there is only one y-value.
So, you can't have two y-values for every x-value.
Thus, (B) would be a relation, because x = 7 has two y-values, and as such, doesn't satisfy the condition of a function.
20% goes into 100% 5 times. So you do 480 times 5, which is 2400. So you answer is 2400.
Answer: £51
Step-by-step explanation:
25% off 49 = 36.75
25% off 19 = 14.25
36.75 + 14.25 = 51
Answer:
1:4
Step-by-step explanation:
There are only two colours available, red and green. We know that there are 11 red marbles and 55 marbles altogether, so the number of green marbles must be 55 - 11, or 44. That means that the ratio of red to green marbles is 11:44, or 1:4.
Answer:
Your welcomeeee :)
Step-by-step explanation:
When two variables correlate and when the value of one increases as the value of the other decreases we say the relationship between both variables shows a negative correlation
