2 years ago

Nine less than three times a number is greater than forty

1 answer:

7 0

Start with an equation.
Nine less... so -9
3 times a number = 3x
Greater than 40 is >40

So put together is 3x-9>40
When solving I imaging the greater than sign as an equal sign. Less confusing.
3x-9=40
3x=49
x>49/3

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The base of a triangle is 3m and its height is $10 \frac{1}{2}$ m.

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