what is a possible value of a in the inequality a+8>25 I know it is 18 expain the work
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just work it out like a normal equation but with a greater than sign
a>25-8
a>17
therefore
anything greater than 17 is the answer.
which does include 18, but it isn't the only answer.
a>25-8
a>17
therefore
anything greater than 17 is the answer.
which does include 18, but it isn't the only answer.
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you can treat inequalities in the same way you treat equations - whatever operation you do to one side you must also do to the other side, to keep the inequality balanced.
for example, if x > 2 then x + 2 > 4
from a + 8 > 25
it follows that a > 17 (subtract 8 from both sides)
if a is greater than 17, a could very well be 18
hope this helps... :)
for example, if x > 2 then x + 2 > 4
from a + 8 > 25
it follows that a > 17 (subtract 8 from both sides)
if a is greater than 17, a could very well be 18
hope this helps... :)
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{18,19,20,21, ..............}
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it could be 18 or anything higher.
you substitute the letter a for the number and then the equation makes sense...
you substitute the letter a for the number and then the equation makes sense...