Answer:
12/(7-4) + 5 * 3 = 19
Step-by-step explanation:
Given
Untrue Expression: 12 ( 7 − 4 ) + 5 3 = 19
Signs: +−×÷
Required
Use the given signs to make the equation true.
To solve this, the trial and error method will be adopted.
The trial and error method involves trying series of sign combinations in the given expression; whichever works is the right answer.
So, after few attempts the following makes the equation true
12/(7-4) + 5 * 3 = 19
To check if it's true or not; we simply expand the expression on the left hand side. This gives
12/3 + 5 * 3 = 19
4 + 5 * 3 = 19
4 + 15 = 19
19 = 19.
Hence, the sign combinations used in 12/(7-4) + 5 * 3 = 19 is correct.
Answer:
1950
Step-by-step explanation:
i got to this by multiplying 30 and 65
Answer:
c = 5
Step-by-step explanation:
- 6 + 2c = 3c -(6+5)
-6 + 2c = 3c -11
-6 + 11 = 3c- 2c
5 = c
Priscilla's weighted average grade in her Calculus course is 77.5%.
<h3>Calculating weighted average</h3>
In order to determine the weighted average, you will multiply each contributor by its individual weight and then take the sum as shown:
Weighted average = 0.50(87%) +0.30(100%) +0.20(20%)
Weighted average = 43.5% +30% +4%
Weighted average = 77.5%
Therefore Priscilla's weighted average grade in her Calculus course is 77.5%.
Learn more on weighted average here: brainly.com/question/24215541
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Answer:
10x +6y - 14
Step-by-step explanation:
3x - 2y = 13x + 4y = 14
3x = 13x + 6y = 14
-10x = 6y = 14
10x + 6y - 14
