9514 1404 393
Answer:
4%
Step-by-step explanation:
We assume the interest earned is simple interest, because that make the numbers come out "nice."
The account balance is given by ...
A = P(1 +rt) . . . . principal P earns simple interest at annual rate r for t years
1080 = 1000(1 +r·2) . . . . fill in the given values
1.08 = 1 +2r . . . . . . . . . . divide by 1000
0.08 = 2r . . . . . . . . . . . subtract 1
0.04 = r = 4% . . . . . . . divide by 2
The annual interest rate is 4%.
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<em>Additional comment</em>
If interest is compounded annually, the annual rate is about 3.92%. If it is compounded continuously, the rate is about 3.85%.
Answer:
A. P = 4s
B. P = 24 cm
Step-by-step explanation:
Perimeter of a shape is the sum of all the length of sides of the shape.
Let the perimeter of the square be represented by P, and the length of its sides by s.
A. P
s
P = ks
where k is the proportionality constant.
But for a square the length of sides are equal, thus;
P = s + s + s + s
= 4s
So that,
4s = ks
⇒ k = 4
∴ P = 4s
B. Given a square of side length 6 cm, determine its perimeter.
P = 4s
But, s = 6 cm
P = 4 x 6
= 24
P = 24 cm
The perimeter of the given square is 24 cm. And the drawing is herewith attached to this answer for clarifications.
First add the number of total larges ordered 22+5=27 then divide 22/27=.814 to make the answer a percent times by 100. .814x100=81.5% to double check you can multiply .814 by number of larges and should get number of hot larges ordered. .814x27=22