Answer:
l = 14 , w = 12
Step-by-step explanation:
2l + 2w = 52 → (1)
l - w = 2 → (2)
multiplying (2) by 2 and adding to (1) will eliminate the w- term
2l - 2w = 4 → (3)
add (1) and (3) term by term to eliminate w
4l + 0 = 56
4l = 56 ( divide both sides by 4 )
l = 14
substitute l 14 into either of the 2 equations and solve for w
substituting into (1)
2(14) + 2w = 52
28 + 2w = 52 ( subtract 28 from both sides )
2w = 24 ( divide both sides by 2 )
w = 12
Notebooks⇒x/5
remaining=4x/5
candy⇒(1/4)(remaining)=(1/4)(4x/5)=x/5 you spent 1/4 of remaining so,
now remaining=(3/4)(4x/5)=3x/5
half of this on
snack⇒ (1/2)(3x/5)=3x/10
now whats left is the other half = same=3x/10 = 6 .....so, x=20 thats K i hope
The sum of length and width is half the perimeter, so is (70 in)/2 = 35 in. Since this is the sum of length and width, if we add 5 inches, it will be twice the length. That is ...
... length + width = 35 in
... length + (width + 5 in) = (35 in) + (5 in)
... 2×length = (35 in) + (5 in) = 40 in
The length of the rectangle is 20 inches.
There are 20 groups of fish