<span><u><em>Answer:</em></u>
Joe needs 6 more hot dog buns.
<u><em>Explanation:</em></u>
Since Joe's starting amount of hot dogs is 18, we know he will need that many buns.
Since he currently has 12, we can subtract that number from the total amount he needs.
Amount he need - Amount he had = Amount more he needs to buy.
18 - 12 = Amount more he needs to buy.
6 = Amount more he needs to buy.</span>
Answer:
7. 8125 l
Step-by-step explanation:
256 km ....... 20l
100 km ...........x l
x = 100×20/256
= 7. 8125 l
To solve, simply layout an equation.
(2x+3)(x+4)=1
Step 1: Simplify both sides of the equation.
2x2+11x+12=1
Step 2: Subtract 1 from both sides.
2x2+11x+12−1=1−1
2x2+11x+11=0
Step 3: Use quadratic formula with a=2, b=11, c=11.
x=-b±√b^2-4ac/2a
So, the answer for this problem is:
x=-11/4+1/4√33 or -11/4+-1/4√33
