Answer:
If side AB is equal to 11 then side AC will also be 11 because angle B and angle C are equal and sides opposite to the equal angles are also equal.
ANSWER
w=23 inches and l=28 inches.
EXPLANATION
The given rectangle has perimeter,
The width of the rectangle is 9cm more than half the length.
Let the length be
inches.
The formula for perimeter is,
We substitute the values to get,
Expand:
The width is
Part a
For horizontal 8*50% = 4 and for vertical 12*75%= 9.
So these values are less than the originals so the new frame is a reduction.
Part b
For horizontal 8*125% = 8*1.25 = 10 and for vertical 12*140% = 12*1.4 =16.8
So these values are greater than the originals sothe new frame is a enlargement.
Let S = the amount of sales.
She earns 4% of her sales, this would be written as 0.4S ( you multiply the percent as a decimal by the amount of sales).
You then need to add that amount to her salary so you now have 0.4s + 2100
She wants to earn at least 2900 so the inequality becomes:
2900 ≥ 0.4s + 2100
Her sales would need to be:
800 ≥0.4s
s≥ 800/0.4
s ≥ 2000