(2x + 16)(2x + 12) = 396 4x2 + 24x + 32x + 192 = 396 4x2 + 56x - 204 = 0 x2 + 14x - 51 = 0 (x + 17)(x - 3) = 0 x + 17 = 0 v x - 3 = 0 x = -17 or x = 3
you can exclude negative value because x cannot be negative :) Checking: (16+2*3) * (12 + 2*3) is equal ? 396? True
So the walkway size is: 22 x 18
A 12 oz bag of bird seed cost $3.12 and a 16 oz bag of bird seed cost $3.84 which is the better deal
Answers
The better deal is rhe 16oz bag cause its only a few cents more to get 4 more oz more
A 16 oz bag would be better because you are getting the same amount as in (16•3=48 & 12•4=48) but 16 oz=3.84•3=11.52$ & 12 oz=3.12•4=12.48 So 16 oz is a better deal
X+5y=8 2x-5y=1 What is the solution?
Answers
add them to cancel y x+5y=8 2x-5y=1 + 3x+0y=9
3x=9 divide boht isdes by 3 x=3 sub back x+5y=8 3+5y=8 minus 3 5y=5 divide 5 y=1
(3,1)
If two squirrels live in one square meter of a fifty square meter park what is the park's estimated squirrel population?
Answers
Well let's find our key words : There are two squirrels that live in one square meter in a park and there are fifty square meters in total. That means multiply : 50•2. I do that because there are 50 square meters and two squirrels per meter. 50•2=100. The total parks estimated squirrel population is 100. :) Hoped I helped!
2 x 50 = 100 es. the population is 100 in the park
The eguation of the line GH is Y= 4X -3 .write an equation of the line perpendicular to the line GH in slope-intercept form that contains point (2,3)
Answers
The slope: m = -1/4 3 = -1/4 · 2 + b 3 = -2 + b b = 5 Answer: y = -1/4 x + 5
Large trucks have 18 wheels. Vans have 4 wheels. Miguel sat at the window at the truck stop and counted 84 vehicles in the parking lot. He figured out that there were 1,343 wheels. How many trucks and vans were in the parking lot?