A jeweler made a new crown for the queen. It was made with an 8.74-carat diamond, a 7.086-carat ruby, and a 4.932-carat sapphire
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Answer:
52
Step-by-step explanation:
We can write this out as an equation. Let's say that the teacher's age is x. Triple the teachers age plus the students age is 163, which can be written out as:
We want to isolate the variable, so subtract 7 from both sides. This gives us:
Finally, we divide both sides by 3, giving:
So the teacher is 52 years old.
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