First distribute the 1/5 through the parentheses.
1/5 (3 + 2z) - 4z = -3
3/5 + 2/5z - 4z = -3
subtract 3/5 from each side
2/5z - 4z = -3 - 3/5
combine like terms
-3 3/5z = - 3 3/5
z = 1
Answer A
I think the last choice, <span>It uses a respectful tone but needs specific, credible evidence to support the claim. ;D</span>
Number of people in the office=13
Number of office lines=66
Given that all the 6 phones started ringing at once, the number of groups of 6 people that that can answer the lines will be:
13C6
=(13!)/(6!7!)
=1,716
Your answer is x= -6 you may review the image I've attached to see how i got my answer.
Hey there! I'm happy to help!
Let's create a basic rectangle with this length to width ratio.
Two sides are 3 and two of them have a length of 2. This would give us a perimeter (distance around) of 10.
We want to find a rectangle with a perimeter of 35 meters with this same ratio. What we can do is multiply all of the dimensions of our first rectangle by 3.5 (to get our perimeter of 10 to 35, we multiply by 3.5).
3×3.5=10.5
2×3.5=7
If we simplify 10.5:7, we have 3:2, and the perimeter of a rectangle with a length of 10.5 and a width of 7 would equal 35 meters.
Have a wonderful day! :D