Answer:
$1.20
Step-by-step explanation:
The first combination tells you ...
3d + 2h = 4.80
The second combination tells you ...
1d + 1h = 2.00
Subtracting twice the second equation from the first gives you the price of a drink:
(3d +2h) -2(1d +1h) = 4.80 -2(2.00)
d = 0.80 . . . . . . the price of a drink
The second equation tells you ...
h = 2.00 - d
h = 2.00 -0.80
h = 1.20
The cost of 1 hot dog is $1.20.
12
Answer: 4x² + 4x - 2 -
<u>Step-by-step explanation:</u>
You can use either synthetic or long division. I am using synthetic division:
2x + 3 = 0 ⇒ x =
| 4 10 4 -6
<u>| ↓ -6 -6 3 </u>
4 4 -2 -3 ← <em>-3 is the remainder</em>
↓ ↓ ↓
4x² +4x -2 ← <em>factored polynomial</em>
2 = 2 = 2 lb.
One line represents 1/16 lb.