HELP PLS HOW DO I DO THIS STEP BY STEP!!
Answer:
C. 2/3
Step-by-step explanation:
You want the value of C that makes the equation have no solution.
(3/4)(5 +(C/2)x) +2 = (x +7)/4
A calculator is not needed to simplify the equation. We can start by multiplying both sides by 4.
3(5 +(C/2)x) +8 = x +7
15 +(3C/2)x +8 = x +7
(3C/2)x +23 = x +7
This will have no solution if the coefficient of x is the same on both sides of the equal sign.
3C/2 = 1
Multiplying by 2/3 gives ...
C = 2/3
The value 2/3 for C will make the equation have no solution, choice C.
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Additional comment
When C=2/3, the equation becomes one that reduces to ...
(x +23)/4 = (x +7)/4 . . . . . no value of x will make this true.
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Answer:
2/3
Step-by-step explanation:
3/4 * (5+ 2/3/2*x)+2 = x+7/4
Simplify
3/4(5+ 1/3x)+2 = x+7/4
15/4 + 1/4x +2 = x+7/4
23/4 + 1/4x = x+7/4
Cancel terms (multiply by 4 to get rid of 4)
23 + x = x + 7
23 = 7
false :)
You can evaluate -6(4 2/3) as -28.
To evaluate the expression -6(4 2/3), you can use either of the following methods:
Method 1: Convert the mixed number to an improper fraction and then multiply.
First, convert the mixed number 4 2/3 to an improper fraction:
4 2/3 = (4 * 3 + 2)/3 = (12 + 2)/3 = 14/3
Now, multiply -6 by 14/3:
-6 * (14/3) = (-6/1) * (14/3)
Now, multiply the numerators and denominators separately:
= (-6 * 14) / (1 * 3)
= -84/3
Finally, simplify the fraction by dividing both the numerator and denominator by their greatest common divisor (which is 3):
= (-84/3) ÷ (3/3)
= -28
So, -6(4 2/3) = -28.
Method 2: Distribute the -6 to both parts of the mixed number.
-6 * 4 = -24
-6 * (2/3) = -4
Now, add the results together:
-24 - 4 = -28
So, using either method, you can evaluate -6(4 2/3) as -28.
Learn more about expression here
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Complete question is below
Which could be used to evaluate the expression ?
-6 (4 2/3)
63,789 + 72,983 - 49,367
Give your answer to 2 s.f.
Answer:
87405
Step-by-step explanation: