Answer:
x + 0.07x or 1.07x
Step-by-step explanation:
To find a percent of a number, multiply the decimal form of the percent by the other number.
7% = 7/100 = 0.07
This means 7% of x is 0.07x.
This would give us the amount of tax to be added; the total amount of the same, including tax, would be
x+0.07x
We can also consider this as adding an extra 7% of the cost. This means we would have 100% of the cost with another 7% of the cost; this is
100+7 = 107% of the cost. 107% = 107/100 = 1.07; this gives us 1.07x.
No. That's only true if x is less than ' 1 ', including anything negative. If x is more than +1, then the square is LESS than the cube.
7.8 * 10^5=since the exponent is positive 5. Then the 7.8 you move the decimal 5 places to the right to be
780000
Answer:
Step-by-step explanation:
<u>Area of a rectangle</u>
A rectangle of width W and length L has an area of:
A = W.L
The given rectangle has a length of L=10 inches and a width of W=8 inches, thus its area is:
A = 8*10 = 80
If each corner is cut by a square of x*x, then the total area will be:
The new area is 
square inches
