100x - 89x = 110
∴11x = 110
∴x = 10
In more detailed explanation;
The first line means "100 times x minus 89 times x equals 110"
We can apply the distributive rule here. Both "100x" and "89x" are divisible by x. This means we can factor it out of both terms giving us the expression:
x (100 - 89) = 110
We can then subtract 89 from 100, giving us:
x(11) = 110
or:
11x = 110
Finally, both sides are divisible by 11, so we can divide it from both sides, giving us:
x = 10
Chat with our AI personalities
x=10 100x-89x=110 11x=110 x=10
ANSWER: 89xeighty nine times a number= 89 * x= 89x
Oh, dude, let's break it down. So, if x equals 6 and y equals 8, we just plug those values into the expression. 9 times 6 is 54, and 10 times 8 is 80. Add those up, and you get 134. Ta-da!
sqrt(7921 = 89 per calculator Mechanically we note that 7921 is near 8100. NB sqrt(81) = 9 so it follows that sqrt(8100) = 90 Since 7921 is slightly less than 8100 then try a slightly lower number than 90. So try 89 89x 89 = 89^2 - 7921 So it foilows that the sqrt( 7921) = 89 The Answer!!!!!