Answer:
11x^2+4x+19
Step-by-step explanation:
1. Combine together: (6x^2 -4x + 20) + (5x^2 +8x-1)
2. Add like terms: 6x^2+5x^2, -4x+8x, 20+(-1)
Answer:
.
Step-by-step explanation:
In this question, (sales price) and (discount rate) are both given. The unknown is the regular price, .
Rearrange the discount equation to solve for in terms of and .
.
.
Divide both sides by :
.
.
It is given that . A mark-down of is equivalent to a discount rate of . Substitute in and to find the value of :
.
Thus, the regular price would be .
Answer:
460%
Step-by-step explanation: