Answer:
Jeff mows 9 yards of lawn in 30 minutes
Step-by-step explanation:
The equation that models the amount of time (t) in minutes it takes Jeff to mow an average sized yard is
, where n is the number of yards he mows.
To find the number of yards Jeff mows in 30 minutes, we set the equation to 30 and solve for n.

Add -12 to both sides:


Divide both sides by 2


Hence Jeff mows 9 yards of lawn in 30 minutes.
1. The equations are Consistent and Independent because they intersect at only one point.
2. The equations are Consistent and dependent because there are infinite solutions.
3. The equations are Inconsistent because they never intersect.
4. The equations are Consistent and Independent because they intersect at only one point.
I hope this helps :)
Answer:
For every 84 pens there are 112 pencils in the box.
Step-by-step explanation:
We are given the following information in the question.
We are given a ratio of pens to pencil is 84 to 112.
Ratio is a relationship between two numbers that helps us to know how first number is related to the second number.
This can be written as: 84 : 112
This can be read as: For every 84 pens there are 112 pencils in the box.
Simplifying the fraction we have:

This ration can be written as 21 : 28 which means for every 21 pens in a box there are 28 pencils in the box.
(6-8i)
(4+2i) side note : -8i - 2i becomes 8i+2i 2+10i because the negatives cancel out
^^^answer