I already have it all translated into decimals.. so I hope this helps
Answer:
The of tax is $ 2812.50
Step-by-step explanation:
Given that Mary's salary is $x per year, then applying the 15% flat tax rate will give the amount paid for tax as;
15/100 *x =0.15 x -----equation (i)
After reforms , Mary still pays a tax similar to the original system. This means the amount of Mary's salary is above $7500.
Mary's amount above is the flat rate of $7500 is ;
$(x-7500)
Applying the 25% tax will give;
25/100 ( x-7500)
0.25(x-7500)
0.25x -1875 --------equation (ii)
Equating the two equations
0.15x = 0.25x - 1875
collect like terms
1875=0.25x-0.15
1875 =0.10x
Divide both sides by 0.10 to get x
1875/0.10 = 0.10x/0.10
18750 = x
The amount of Mary's salary is $18750
The amount of tax she pays is;
0.15 * 18750 =$ 2812.50
Next time, please include the directions for the problem you post. Here it appears that you have given the values of I, P and t two times each.
Unfortunately, I have to guess what you're looking for.
Assuming that I=$26.25 is the interest earned on Principal P=$500, and that t is the length of time over which the Principal earns interest,
I=Prt. With I, P and t given, it's obvious that our job is to find the annual interest rate, r. So, from I=Prt, we get
$26.25 = $500 (r) (1.5 years) Solve this for the interest rate, r.
Express r both as a decimal fraction and as the equivalent percentage.
Answer:
80,60,40
Step-by-step explanation:
The three angles of a triangle add to 180
Multiply the ratio by x
The angles are 4x, 3x, 2x
Add them together
4x+3x+2x = 180
Add like terms
9x = 180
Divide by 9
9x/9 =180/9
x = 20
The angles are 4x = 4(20) = 80
3x= 3(20) = 60
2x= 2(20) = 40
Answer:
It cannot be the line of best fit because it is not closest to most of the points; and (0, 15) and (10, 1)
Step-by-step explanation:
A screenshot of the first question is attached.
Graphing the points and drawing the line that is supposed to be the line of best fit, we can see that it is not very close to the majority of the points. This means it should not be used as the line of best fit.
For the second question, if we graph the points and draw a line between the first two, we get the second screenshot I've attached. It goes through the majority of points. However, if we draw a line through any of the other pairs of points, it does not go through the majority of points and thus would not be a line of best fit.