S/g=7/5, s=7g/5
s=g if s-30=g+30 using s found above...
7g/5 -30=g+30
(7g-150)/5=g+30
7g-150=5g+150
2g=300
g=150, and since s=7g/5, s=210
So Simon started with 210 pencils and Greg started with 150 pencils.
Answer: 63 ft^2
Step-by-step explanation:
the formula for the area of a circle is A = π r ^2. the radius (r) is 1/2 of the diameter.
first, we'll plug in the radius of table #1 into the equation (A = π 4 ^2) and get an answer of 50.27 ft^2. then plug in radius of table #2 (A = π 6 ^2) and get 113.1 ft^2. now find the difference of the areas by subtracting (113.1 - 50.27) to get an answer of 62.83 ft^2. which will round up to 63 ft^2.
when solving for y
y = -7x/3-6
so y does not vary directly with x
the answer is no
