Add & Subtract Rational Numbers
Abraham needs one-half of a point to get an A– in Math. What rational number can be used to represent the number of points needed for Abraham to get an A–?(1 point)
Place the following numbers in order as they would appear on a number line, left to right: −2.0, 0.25, −1.02, 1.98.(1 point)
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The rational number that can represent the number of points needed for Abraham to get an A– is 1/2.
The numbers in order from left to right on a number line would be:
-2.0, -1.02, 0.25, 1.98.
Find the sum of p and q if p=34 and q=−114. Reduce your answer to lowest terms.
The sum of p and q is found by adding the values of p and q together:
p + q = 34 + (-114) = -80.
The sum, -80, is already in its simplest form, so there is no need to reduce it any further.
Which of the following is a real-world problem that could be solved with the sum 102.50+(−39.95)?
A real-world problem that could be solved with the sum 102.50 + (-39.95) could be a situation involving money or finances. For example:
Sarah went shopping and bought items totaling $102.50. However, she returned one item that cost $39.95. What is the remaining total that she spent after accounting for the return?
In this case, the sum 102.50 + (-39.95) would give us the answer to the problem, which is the remaining amount that Sarah spent after subtracting the cost of the returned item.
Which of the following is a real-world problem that could be solved with the sum 102.50+(−39.95)?(1 point)
Responses
A. Nevaeh earned $102.50 last weekend. He then received $39.95 from his mom. How much money does he now have?
B. Nevaeh earned $102.50 last weekend. He then received $39.95 from his mom. How much money does he now have?
C.Nevaeh earned $102.50 last weekend. He then spent $39.95 on a new game. How much money from his weekend earnings does he have left?
D.Nevaeh has $102.50 in his bank account. He then deposits $39.95 into his bank account. How much money does he now have in his bank account?
C. Nevaeh earned $102.50 last weekend. He then spent $39.95 on a new game. How much money from his weekend earnings does he have left?
It was 13°C yesterday, but the temperature changed by −18.6° overnight. What is the temperature now?
To find the temperature now, we need to subtract the change in temperature from the initial temperature.
Initial temperature: 13°C
Change in temperature: -18.6°C
Temperature now = Initial temperature + Change in temperature
Temperature now = 13°C + (-18.6°C) = -5.6°C
Therefore, the temperature now is -5.6°C.