Isabella is 10% taller today than she was one year ago. Her current height is 176cm. How tall was she one year ago?
1 answer:
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Greetings!
Substitute:
Now we can input this into the other equation so, we only have one variable.
Solve for y.
Distribute the parenthesis.
Combine Like Terms.
Add -50 to both sides.
Simplify.
Divide both sides by 0.01.
Simplify.
Input this value into the other equation.
Add -700 to both sides.
Simplify.
The answer would be 300,700
Hope this helps.
-Benjamin
Substitute:
Now we can input this into the other equation so, we only have one variable.
Solve for y.
Distribute the parenthesis.
Combine Like Terms.
Add -50 to both sides.
Simplify.
Divide both sides by 0.01.
Simplify.
Input this value into the other equation.
Add -700 to both sides.
Simplify.
The answer would be 300,700
Hope this helps.
-Benjamin