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In Problem 19, it surely sounds as tho' reflection in the y-axis is taking place. The y-coordinate remains the same, but the x-coordinate changes sign.
Suppose that the point you've invented is (2, -5). Rewrite this, leaving the '2' as is, but changing the sign of that "-5." What's your new point?
Plot (2, -5) and (-2, -5). Do these points satisfy the specifications given in this problem?
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
Answer: 4
Step-by-step explanation: Subtract 2 on both sides, you get 2c=8 ... divide 2 on both sides. C = 4
Answer:
4xy
Step-by-step explanation: