Answer:
x=-5
Step-by-step explanation:
2x+10=0
2x=-10
x=-5
First, convert the 65% to a real mathematical number. For percents, this is always done by dividing the 65% by 100%, or 65% / 100% = 0.650.
Second, find out what 65% of $60 is. This is the amount of the sale discount. This is always found by mulitplying 0.650 by the item's cost $60, like this:
0.650 x $60 = $39.00.
So for this sale, you'll save $39.00 on this item.
This means, the cost of the item to you is
<span>$60 - $39.00 = $21.00.</span>
Answer:
A is correct and .. AAAAA
Step-by-step explanation:
A
Start by finding the area of the base.
A = lw
A = 3 x 3
A = 9 square feet.
Sides use the formula of a triangle: 1/2bh
A = 1/2bh
A = 1/2(3)(5)
A = 1/2(15)
A = 7.5
Next, there are 4 sides, so multiply the side area by 4.
7.5 * 4 = 30 square feet.
Lastly add all surface areas together:
30 + 9 = 39 square feet.
