Evaluate. 13⋅[18÷(15−9)] Enter your answer in the box.
2 answers:
Answer:
The value of the expression is 39.
Step-by-step explanation:
Consider the provided expression.
13⋅[18÷(15−9)]
According to PEMDAS rule we first solve parenthesis, exponents, multiplication, division, addition, subtraction.
Now use the above rule and first solve the parenthesis as shown:
13⋅[18÷(6)]
13⋅[18÷6]
Now perform the division inside the parenthesis as shown below:
Perform the multiplication.
Hence, the value of the expression is 39.
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Given:
The given phrase is 16 seconds faster than Aya’s time.
To find:
The algebraic expression for the given phrase.
Solution:
Let x be the Aya’s time.
16 seconds faster than Aya’s time. It means 16 seconds less than Aya’s time.
We know that a negative sign "-" is used for less than.
16 seconds less than Aya’s time =
16 seconds faster than Aya’s time =
Therefore, the required algebraic expression is .