My car travels 30km for every liter of fuel i put in. A liter of fuel costs $1.25. How far can I drive for $12.50?
1 answer:
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Answer:
<u>Option B</u>
Step-by-step explanation:
The question is as following:
Step Work Justification
1 2x + 6x − 4 = 12
2 8x − 4 = 12
3 8x = 16
4 x = 2
Which of the following has all of the correct justifications Wyatt used to solve this equation?
A. Distributive property. 2. Combine like terms. 3. Addition property of equality. 4. Division property of equality.
B. Multiplication property of equality. 2. Combine like terms. 3. Addition property of equality. 4. Division property of equality.
C. Distributive property. 2. Combine like terms. 3. Subtraction property of equality. 4. Division property of equality.
D. Multiplication property of equality. 2. Combine like terms. 3. Subtraction property of equality. 4. Division property of equality
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<u>The answer:</u>
Step Work Justification
multiply both sides by 2
1) 2x + 6x − 4 = 12 ⇒ {Multiplication property of equality}
{Combine like terms}
2) 8x − 4 = 12 ⇒
Adding 4 both sides
3) 8x = 16 ⇒ {Addition property of equality}
divide both sides by 8
4) x = 2 ⇒ {Division property of equality}
The answer is option B
(B) Multiplication property of equality. 2. Combine like terms. 3. Addition property of equality. 4. Division property of equality.
Answer:
The value of x for the given expression is
Step-by-step explanation:
Given as :
The statement is , three fourths times x plus five fourths equals four times x
So, × x +
= 4 × x
<u>Now, rearranging the equation</u>
i.e 4 x - × x =
Or, 4 x - =
Or, =
Or, =
Or, 13 x = × 4
Or, 13 x = 5
∴ x =
Hence, The value of x for the given expression is Answer