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.
The answer is 18. It says that Trina scored 6 less than Rachel and Trina scored 12. Add 12 and 6 and get 18. Rachel scored 18 points
I think the answer would be 1.8
The correct answer that would best complete the given statement above would be PHYSICAL WEATHERING. The gradual wearing away or breaking down of rocks by abrasion is a type of physical weathering. In physical weathering, <span>rocks get smaller and smaller without a change in the composition of the rock.</span>
