Answer:
28/12
Step-by-step explanation:
you multiply 12 times 2
then add it to 4
Hello :
<span> the quadratic equation is: a(x-x1)(x-x2)
x1 and x2 the </span><span> roots
a: is</span><span> leading coefficient
in this exercice : 3(x-1)(x-2)</span>
Answer:
<u>Bob and John can finish the job together in approximately 2.92 hours or 2 hours and 55 minutes</u>
Step-by-step explanation:
Let's recall that the formula for solving this kind of problems is:
T/A + T/B = 1, where T = time working together, A = the time for person A working alone, and B = the time for person B working alone.
Now, replacing with the values we have:
T/5 + T/7 = 1
35 is the Lowest Common Multiple of 5 and 7
5T + 7T = 35
12T = 35
T = 35/12
T = 2.92 (Rounding to the next hundredth) and 0.92 * 60 ≅ 55
T ≅ 2.92 hours (Around 2 two hours and 55 minutes)
