Jill had $24 to spend on seven pencils. After buying them she had $10 left. How much did each pencil cost? *

Jill spent $14 dollars on 7 pencils

Step-by-step explanation:

Of the $24, she has $10 left, therefore, she spent $14 on the 7 pencils. You can tell now how much each pencil cost, since 7 goes into 14, 2 times. The answer is the cost for each pencil= $2.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)