85 x .15 = 12.75
85 + 12.75 = 97.75
Answer: Nolan took 97.75 Seconds
Let x = your number.
x^2 - 21 = 4x. Subtract 4x from both sides.
x^2 - 4x - 21 = 0. Factor.
(x - 7) (x + 3) = 0. Set each term to 0.
x + 3 = 0. Subtract 3 from both sides.
x = -3. This is the negative solution.
Set the other term equal to zero.
x - 7 = 0. Add 7 to each side.
x = 7. This is the positive solution.
Greatest common factor
faceor each and find common groups
18a=2 times 3 times 3 times a
20ab=2 times 2 times 5 times a tmes b
6ab=2 times 3 times a times b
common group is
2 times a
answe ris 2a
Answer:18
Step-by-step explanation:
Because 40% of 45 is 18
Answer:
None
Step-by-step explanation:
Mode is the number that repeats the most. All of these numbers are unique, and there is no repeats, therefore there is no mode.
