To check for the correlation, simply look at both the age and the cost values, since as age increases the cost decreases, there is a negative trend, since the cost is decreasing as one increases.
The actual amount can be approximated, because the amount is not going down as quickly it goes down slowly it would probably be -0.05.
This is a weak negative.
Answer:
80%
Step-by-step explanation:
1. Formula for collecting efficiency is:
(Output energy÷Input energy) x 100
2. Plug in the values:
(40J÷50J)x 100
= 80%
Answer:
60, if they all have the same age, 60 * 3 = 180.
The oldest one has to be aged 60 along with the youngest aged.
128 because 128 times 2 is 256 children tickets and 256 plus 128 is 384
Answer: 63
Step-by-step explanation: To find 70% of 90, first write 70% as a decimal by moving the decimal point two places to the right to get .70.
Next, the word "of" means multiply, so we have (.70)(90) which is 63.
So 70% of 90 is 63.