Which value of x satisfies both 3x + y = 9 and 3x − 5y = 15?. A) \[\frac{ 10 }{ 3 }\]. B) \[\frac{ 2 }{ 3 }\]. C) \[-1\]. D) \[0
2 answers:
Answer:
Option A. is the correct option.
Step-by-step explanation:
Two equations are 3x + y = 9 ------------(1)
and 3x - 5y = 15 ----------(2)
we have to calculate the value of x common for both.
We multiply equation 1 by 5 and add it to equation 2
15x + 5y = 45
<u>3x - 5y = 15___</u>
18x = 60
x =
Therefore option A. is the answer.
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Answer:
Option A is the correct choice.
Step-by-step explanation:
Let d be the number of boxes of duck calls and t be the number of boxes of turkey calls.
We have been given that a company sells boxes of duck calls for $35 and boxes of turkey calls (t) for $45, so the revenue earned from selling d boxes of duck and t boxes of turkey call will be 35d and 45t respectively.
Further, the company plan to make $300. We can represent this information as:
We are also told that they make batches of duck calls that fill 6 boxes and batches of turkey calls that fill 8 boxes. the company only has 42 boxes. We can represent this information as:
Therefore, our desired system of equation will be:
Answer:
Step-by-step explanation:
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