Answer:
Step-by-step explanation:
The points/decimals do not line up, therefore you need to correctly line them up so it should be.
2.80
+ 1.64
which would be 4.24
1 steak costs $9.99
2 steaks cost 2*9.99 = $19.98
This is before tax is applied
Apply the 6% tax to get
6% of 19.98 = (6/100)*19.98 = 0.06*19.98 = 1.1988
which rounds to 1.20 (rounded to the nearest penny)
The sales tax is therefore $1.20
Add this to the previous total (19.98) and we get a grand total of 19.98+1.20 = 21.18 which is the final cost (with tax included)
note: we can multiply 19.98 by the value 1.06 to get 19.98*1.06 = 21.1788 and that rounds to 21.18; so it's a different route to the second answer
F is proportional to 1/x^2
distance = x
A reduction of 25 percent = 0.75x
Let’s put this in place of x
F = 1/(0.75x)^2
And simplify
F = 1/0.5625x^2
So you need to find the percentage increase from 1/x^2 to 1/0.5625x^2
So what does 1/x^2 multiply by to give 1/0.5625x^2
Written as an equation it is y/x^2 = 1/0.5625x^2
Multiply both sides by x^2
y = 1/0.5625
y = 1.778 (rounded to 3 decimal points)
So the decimal multiplier is 1.778 and so the percent increase is approximately 77.8%
First off, these fractions will work to your advantage if they are in the form of an improper fraction. 7 and 3/4 as an improper fraction is 31/4. 2 and 1/3 as an improper fraction is 7/3. Now, in order to add and subtract fractions, they need to have a common denominator. 3 and 4 share a common multiple of 12. 31/4 = 93/12. (You need to multiply by the same number in the numerator as you did in the denominator. Multiply 4 by 3 to get 12. Multiply 31 by 3 to get the new numerator.) 7/3 = 28/12 (Multiply by 4 to get 12 in the denominator. Multiply 4 by 7 for the numerator.) 93/12 -28/12 = 65/12 This fraction can also be expressed as a mixed number. 5 and 5/12.
Answer:
12. 708, 12.78, 12.807, 12.87
(not sure if this is what you mean)
