Answer:
- 124+73
- 73 miles
- 28% decrease
Step-by-step explanation:
1. Subtracting a number is the same as adding its opposite. The opposite of -73 is 73, so subtracting -73 is the same as adding 73:
... 124 -(-73) = 124 +73
2. Lamar drove 48+55 = 103 miles, but that is not what the question asks. Rather, it asks the straight-line distance from where he is to where he started. That distance (d) is the length of the hypotenuse of the right triangle that has 48 mile and 55 mile legs. The Pythagorean theorem is used to calculate the straight-line distance in such cases.
... d² = 48² + 55²
... d² = 2304 + 3025 = 5329
... d = √5329 = 73 . . . . miles
3. The percentage change between two numbers is calculated from ...
... percent change = ((new value) - (old value))/(old value) × 100%
Putting in your numbers, you have ...
... percent change = (120.96 -168)/168 × 100% = -47.04/168 × 100%
... = -0.28 × 100% = -28%
The minus sign indicates the change is a <em>decrease</em> of 28%.
Given:
Point = (3,4)
Slope : m = -z
To find:
The point slope formula.
Solution:
Point slope form: If a line passes through the point and having slope m, then the point slope form of the line is
The line passing through the point (3,4) and having slope -z.
Putting , we get
Therefore, the required point slope form is .
Answer:
(8x + 20)-2x
Step-by-step explanation:
We don't know what x is, so we use the Distributive Property to do 4 x 2x, then 4x5. We put parentheses around it, and then do - 2x
Answer:
y plus the difference of sixty-five and three
Answer:
v=-15
Step-by-step explanation:
–2(v + 9) = 12 ------> v=-15