Answer:
x = 2
Step-by-step explanation:
5 ( 6x - 4 ) = 20 + 4 ( 3 + x )
30x - 20 = 20 + 12 + 4x
30x - 20 = 32 + 4x
26x = 52
x = 2
We can put in 6 - 2x for y:
2x + y = 6
2x +(6 - 2x) = 6
2x + 6 - 2x = 6
6 = 6
Since this statement is true:
x and y are all real numbers.
Hope this helps!
Answering your question on "9 students can make a poster in 10 hours. How many students should join them so that they all together can make this poster in 6 hours" its 13 students
6 pounds.
First, find the amount she spent. 70 - 18.88 = 51.12
Now, just divide 51.12 by the cost per pound. 51.12 / 8.52 = 6
So, Karen purchased 6 pounds of coffee.
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