42+7a= 7(6+a)
By noticing they both have a factor of 7, I was able to find the equation.
Answer:
-9
Step-by-step explanation:
Substitute 3 for <em>z</em><em> </em>and 9 for <em>w</em> in the equation.





The distance around a circle on the other hand is called circumference and half of the diameter or the midpoint th the circle border is called the radius of the circle.
Answer:
The correct answer is the third option
Step-by-step explanation:
Have different slope but have the same y-intercept, so they have no solution.
y = 1/2x - 3
To graph this, the slope 1/2 which means go up once and to the right twice and b = -3, which means the y-intercept.
second equation:
y = -1/2x -3
To graph this, the slope -1/2 which means go down once and to the right twice and b = -3, which means the y-intercept.
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Answer:
25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.
Step-by-step explanation:
Given:
5 pounds of fertilizer cover = 2
of the lawn
We need to find the 25 lb bag cover.
Solution:
Now we know that;
5 pounds of fertilizer = 2
of yard.
1 lb of fertilizer = Number of
lawn covered by 1 lb fertilizer.
Using Unitary method we get;
Number of
lawn covered by 1 lb fertilizer = 
Now we can say that;
1 lb of fertilizer =
of the yard
25 lb of fertilizer = Number of
lawn covered by 25 lb fertilizer.
Again by using Unitary method we get;
Number of
lawn covered by 25 lb fertilizer. = 
Hence 25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.