Refer to the number line given. List two situations or problems for which you have used a number line in the past.
1 answer:
Problem 1:
The temperature in one winter morning in Edinburgh was -6°C. By 2 PM, the temperature had increased by 5 degrees. What was the temperature by 2 PM?
Answer:
Refer to the first number line. You would start counting five units to the right from -6. You would stop at -1 and that is the answer to the question
Problem 2:
Anna had $4 balance in her bank account. She used her debit card to purchase a meal deal that costs $5. Her bank account allows overdraft. What amount would her bank statement shows if Anna had not deposit any money since her last purchase?
Answer: Over draft means that a bank allows their customer to make purchase more than what they've got left in their balance but this means the customer will be in debt to the bank. Anna had $4 in the bank and she made a purchase of $5. Her bank statement would show
4 - 5 = -1
Using the number line, you would start from 4 and count back 5 to get to -1
The temperature in one winter morning in Edinburgh was -6°C. By 2 PM, the temperature had increased by 5 degrees. What was the temperature by 2 PM?
Answer:
Refer to the first number line. You would start counting five units to the right from -6. You would stop at -1 and that is the answer to the question
Problem 2:
Anna had $4 balance in her bank account. She used her debit card to purchase a meal deal that costs $5. Her bank account allows overdraft. What amount would her bank statement shows if Anna had not deposit any money since her last purchase?
Answer: Over draft means that a bank allows their customer to make purchase more than what they've got left in their balance but this means the customer will be in debt to the bank. Anna had $4 in the bank and she made a purchase of $5. Her bank statement would show
4 - 5 = -1
Using the number line, you would start from 4 and count back 5 to get to -1
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Answer:
b = (T - a - c - d) / 3
Step-by-step explanation:
Let T be the total number of points required to advance.
a, c and d are points scored in the local matches, and b is the number of points scored in the district match. If b is worth 3 times as much as the other matches, the total number of points is given by:
Isolate b in order to find out how many points they need in the district match:
They need to score (T - a - c - d)/3, in the district match in order to win.
Answer:
a. The time to strike the ground is 5 seconds
b. The time for the ball to be over than 96 ft is 1 second
Step-by-step explanation:
a. When the ball thrown vertically up ward to reach its maximum height at velocity = 0 then complete its motion vertically down ward to strike the ground its displacement = zero
∴ s(t) = 0 ⇒
∴
5 - t = 0⇒ ∴ t = 5 seconds
b. To tind the time that the ball will be over 96 ft over the ground substitute in
t = 3 sec. and t = 2 sec.
The ball will be at height 96 ft at time 2 sec. and 3 sec.
So the ball will be at height over than 96 = 3 - 2 = 1 sec.