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How do you write an algebraic expression, an equation, or an inequality of "Three times the sum of a number y and 8"?

Answer 1

Genesis Allen

#3(y+8)#

"Three times #color(red)("the sum of a number y and 8")#"

#rArr # #color(blue)("Three times")# #color(red)((y+8))#

#rArr# #color(blue)(3xx)# #color(red)((y+8))#

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Answer 2

Jameson Allen

The algebraic expression is (3(y + 8)).

The equation is (3(y + 8) = \text{some value}).

The inequality is (3(y + 8) > \text{some value}) or (3(y + 8) < \text{some value}), depending on the context.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.