1. Last week, Mr. Key worked for 50 hours. This week, he work for 58 hours. 2p
Find the percent of change for Mr. Key's hours worked.
SA
be

  16% increase

Step-by-step explanation:

A percentage change can be calculated from ...

  percentage change = ((new value)/(old value) -1) × 100%

  = (58/50 -1) × 100% = (1.16 -1) × 100%

  = 16%

Mr. Key's work hours increased 16% from last week to this.

answer are

step-by-step explanation:

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)