Which of the following equations is equivalent to .25x - .5y = 8?
1 answer:
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<u>Answer:</u>
The correct answer option is E. [83 + 2(79) + 4(88)] × 1/7.
<u>Step-by-step explanation:</u>
We are given the quiz average, test average and final average for Sabra's grades for a class.
Given that her test average counts twice as much as her quiz average and final exam counts twice as much as her test average for her overall average:
÷
This can also be written as:
[83 + 2(79) + 4(88)] × 1/7
Answer:
x = 7
Step-by-step explanation:
We are told one quarter of x is equal to 7 , then the equation is
x = 7 ( multiply both sides by 4 to clear the fraction )
x = 28