Answer: Part A = Age, Part B = 154 - 0.7a, Part C = 140 beats per minute (BPM)
Step-by-step explanation: The question states "...in beats per minute, <u>depends on a person's age</u> and can be represented..." and the variable is a, so a is age. To rewrite an expression, you need to multiply the number outside the parentheses with the terms inside the parentheses. In this case 0.7 * 220, which is 154 and 0.7 * a which is 0.7a. So the expression rewritten is 154- 0.7a. In order to solve question C you need to plug in the variable. So 0.7(220 - 20) or 154 - 0.7 * 20, whichever is easier. After solving, your answer will be 140 beats per minute.
Answer:
-6x+3>9
Step-by-step explanation:
Answer:
16-58
Step-by-step explanation:
This is the range of the data set because it's going from 16-58.
Answer:
Key:
• 
• Factor out the last leading term standing to solve in the end.
Step-by-step explanation:
15/7
=2 1/7
Since 7 goes into 15 two times with a remainder of 1
