Answer:
a=4 n=25
Step-by-step explanation:
5a+5=n
(a+n)-4+25
a+n=29
5(4)+5=n
20+5=25
Answer:
54.19
Step-by-step explanation:
29.75×2+6.11×4=
7 and 55/10000 which simplifies to 7 and 11/2000
Answer:
$60 was the price of Zoe's dinner, before sales tax and tip.
Step-by-step explanation:
- Sales tax = 11% * original price = 0.11 * x= 0.11x
- Tips for dinner = 20% * original price = 0.20 * x = 0.2x
- 0.11x + 0.2x = 18.60
- 0.31x = 18.60
- x = 60
- $60 was the price of Zoe's dinner, before sales tax and tip.
Answer:
x³ -x²-30x+72
Step-by-step explanation:
→ ( x - 3 ) ( x - 4 ) ( x + 6 )
[ expand and open brackets ]
→ ( x² -4x -3x + 12 ) ( x + 6 )
[ simplify ]
→ ( x² -7x + 12 ) ( x + 6 )
[ expand ]
→ x³ +6x² -7x² - 42x + 12x + 72
[ simplify/ final answer ]
→ x³ -x² -30x +72
