3 and 1/2 can be rewritten as a fraction as 7/2.
7 can be written as 7/1.
When dividing by a fraction, simply multiply by the reciprocal.
7/2*1/7.
Then, cross multiply across the top.
7*1=7
2*7=14
So it's 7/14, which can be reduced to 1/2.
Answer: Quadratic
Solution
X=0
X=- 1/3
Answer:
- 6x² - 2x + 1
Step-by-step explanation:
Given
(2x³ - 4x² - 3x + 5) + (- 2x³ - 2x² + x - 4)
Both parenthesis are distributed by 1 thus just remove them
= 2x³ - 4x² - 3x + 5 - 2x³ - 2x² + x - 4 ← collect like terms
= - 6x² - 2x + 1
Answer:
Sue must score 94 on the final test to earn a B.
Step-by-step explanation:
There are five tests in total.
Sue's average on the first four tests is 84.
If after the final test, she scores X, she will have a B on average of five tests.
We have the following equation:
86 = (4 × 84 + X)/5
<=> X = 5 × 86 - 4 × 84
=> X = 94
