Answer:
1) n + 7 = 20
2) x + 7 = 14
3) x + n = 21
4) 11 +n = 19
5) x - 17 = 14
6) 12 - x = 8
7) x - 4 = 30
8) 8x = 56
9) 1/2n = 18
10) 2(n > 4) = 12
11) 4n = 12
12) n + 2 = 14
13) n - 10 = 4
14) n - 2 = 8
15) n - 2 = 9
16) 2n - 3 = 17
17) 2n - 10 = 22
18) 3n - 6 = 13
19) 2n - 9 = 7
20) 2(n < 3) = 13
Step-by-step explanation:
I'm not entirely sure about numbers 10 and 20..
Answer:
$250.15.
Step-by-step explanation:
Original price of chair: $435
To find the sale price, multiply this $435 by (1.00 - 0.47), obtaining 0.53($435), or $230.55.
To find the total price after tax, multiply this $230.55 by (1 + 0.085), obtaining $250.15.
Answer:
16 inches
Step-by-step explanation:
c = πd
50.26 = 3.14 * d
Divide both sides by 3.14
d = 16.0
16 inches
The value a = 4 will always yield a correct answer.
We know this by solving for a. If we do this, we will get the number needed.
a(x + 3) < 5x + 15 - x -----> simplify like terms
a(x + 3) < 4x + 15 -----> divide by x + 3
a < 4 + 3/(x + 3)
Since a is less than 4 plus a number, we know that a will always be less than 4. So we can use 4 as the number for all real solution.
