Answer: area word problems
Step-by-step explanation:
Answer:
The dimensions of the original rectangle are Length =12cm, Width=8cm
Step-by-step explanation
Let the length of the rectangle be x
Let the width of the rectangle be y
The perimeter of a rectangle is 40cm.
2(x+y)=40
Divide both sides by 2
x+y=20
If the length were doubled(2x) and the width halved(y/2), the perimeter would be increased by 16cm,i.e.(40+16)cm
Therefore:
Divide both sides by 2
From the first equation, x=20-y.
Substitute x=20-y into
1-1 is 2. 2 over 2 is the same as 1.
She should use 18 tablespoons of plant food.
6÷2= 3
3×6= 18
Hope this helps! :)
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i)
Pythagorean's theorem: √50
j)
Pythagorean's theorem: √1/2