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-?
Correct Answers:
1. 1/2
2. -2.0,-1.02,0.25,1.98
3. -2
4. -27
5. -5.14
6. 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?
7. -5.6
8. 378.89
9. 15.81
10. 39
11. 0
12. A football player loses yards on a play.
13. 6 1/12
14.
A plane ascends to 15,000 feet and then descends 15,000 feet. How many feet above the ground is the plane?
15. the temp changed by 4.6 during the three hours.
To find the change in temperature during the three hours from 9 a.m. to noon, we need to subtract the initial temperature at 9 a.m. from the temperature at noon.
Initial temperature: -5.8 degrees Celsius
Temperature at noon: -1.6 degrees Celsius
Change in temperature = Temperature at noon - Initial temperature
Change in temperature = -1.6 - (-5.8)
= -1.6 + 5.8
To add the numbers, align the decimal points and perform the addition:
-1.6
+ 5.8
-------
4.2
The change in temperature during the three hours is 4.2 degrees Celsius.
This means that the temperature increased by 4.2 degrees Celsius from 9 a.m. to noon.
The rational number that can be used to represent the number of points needed for Abraham to get an A- is 0.5 (or 1/2).
In order from left to right, the numbers would appear on a number line as follows:
-2.0, -1.02, 0.25, 1.98
To find the sum of p = 3/4 and q = -11/4, we add the numerators and keep the same denominator:
(3/4) + (-11/4) = (3 - 11)/4 = -8/4
Now, we can simplify the fraction -8/4 by dividing the numerator and denominator by their greatest common divisor, which is 4:
-8/4 = -2/1
So, the sum of p and q, when reduced to the lowest terms, is -2/1 or simply -2.
To add (-12) and (-15), simply add the two numbers:
(-12) + (-15) = -27
Therefore, the sum of (-12) and (-15) is -27.