Solve the following problem which includes scientific numbers. Show answer in scientific notation. (1.49 × 10–2) × (2.3 × 10–3)
1 answer:
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❖ A number y increased by 5 is at least -21.
❖ First, if you come across the word "increased" it means we
"increase" a number, or add something to that number, like
y increased by 5
Now, we are also given that this expression is at least -21, which means it can't be -21; it can be -21 or it can be greater than -21.
So we have
<em>Solving for y</em>
<em></em>
- Subtract 5 on both sides:-
So the values of y greater than or equal to -26 will make this inequality true.
<h3>Good luck with your studies.</h3>