Answer:
P=30cm
Step-by-step explanation:
So the formula there is to find the Perimeter of the rectangle, so we are going to use it!
Using Substitution:

Hope this helps!
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12 over 15
all of them but that one simplify to 2 over 3
Answer:
a^3-b^3
Step-by-step explanation:
(a−b)(a2+ab+b2)
=(a+−b)(a2+ab+b2)
=(a)(a2)+(a)(ab)+(a)(b2)+(−b)(a2)+(−b)(ab)+(−b)(b2)
=a3+a2b+ab2−a2b−ab2−b3
=a3−b3
Answer:
2,000 ≥ 821+x
Step-by-step explanation:
it is said that the maximum weight the elevator could hold is 2,000, so the weight in the elevator should be 2,000 or less then 2,000.
It is said that already 5 people are inside with a weight 821, in this case we only care about the weight
the inequality will look: 2,000 ≥ 821
now they asked us how much more weight can the elevator can hold
lets make (x) represent the extra weight
x= extra weight
the equation will be 2,000 ≥ 821+x
Answer:
0.927
Step-by-step explanation:
just plug it in to a algebraric calculator!