SOLUTION: The product of some negative number and 11 less than three times that number is 20. Find the number.
Algebra.Com
Question 670237: The product of some negative number and 11 less than three times that number is 20. Find the number.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The product of some negative number and 11 less than three times that number is 20.
Find the number.
n(3n-11) = 20
3n^2 - 11n - 20 = 0
Factors to
(3n + 4)(n - 5)
the negative solution is what they want here
3n = -4
n = -4/3
n = -1
:
:
See if that works, use n = -1.33
-1.33(3(-1.33)-11) = 20
-1.33(-4-11) = 20
-1.33*-15 ~ 20
RELATED QUESTIONS
The product of some negative number and 8 less than three times that number is 35. find... (answered by harpazo)
The product of some negative number and 2 less than twice that number is 220. Find the... (answered by math_pro)
A product of some negative number and 4 less than twice that number is 336. Find the... (answered by josgarithmetic)
The product of some number plus 2 and 5 is 11 less than the number times 8. Find the... (answered by lordacro)
The product of some number plus 2 and 5 is 11 less than the number times 8. Find the... (answered by stanbon)
11 less than three times a number is the same as 75 less than the product of -1 and the... (answered by ewatrrr)
If three times the square of a negative number is added to the product of -7 and the... (answered by jim_thompson5910)
eight more than three times a number is negative nineteen
the difference four times a... (answered by oberobic,rfer)
Four times the sum of twice a number and negative three is less than 5.5 time that same... (answered by ikleyn)