Answer:
25% decrease
Step-by-step explanation:
Take the original price and subtract the new price
450-337.50 =112.50
Divide by the original price
112.50/450=.25
Multiply by 100% to change to percent form
25%
The answer to your question is (3x+2)(x+1)
Answer: 57 ft²
Step-by-step explanation:
Find the areas of the two individual rectangles and then add that up to find the area of the figure:
Rectangle A: Rectangle B:
= Length * Width = 11.5 * 3
= 7.5 * 3 = 34.5ft²
= 22.5 ft²
Area of figure:
= 22.5 + 34.5
= 57 ft²
Answer:
The first choice:
,
, and
.
Step-by-step explanation:
.
Add the first row to the second row to obtain:
.
Simplify that matrix to obtain:
.
Divide the second row by
:
.
Hence,
.
Subtract the current row two from row three:
.
Simplify that matrix to obtain:
.
Invert the signs in the third row and divide it by
to obtain:
.
Hence,
.
Subtract two times the current second row from the first row to obtain:
.
That simplifies to
.
Subtract the current third row from the first row to obtain:
.
That simplifies to
.
Invert the signs in the first row to obtain:
.
Hence,
.
.
To find density i believe you divide the mass by volume