i think of a number, multiply it by 2 subract 6 and then divide by 4. If the answer is 8 what is the original number
1 answer:
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Answer:
She should have multiplied one half (4)(3.5) by 5 squared.
Step-by-step explanation:
We are given that
Base of triangle=b=4 cm
Height of triangle=h=3.5 cm
Area of triangle=
After enlarged
Scale factor=5
New base of enlarged triangle=b'=4(5) cm
Height of enlarged triangle=h'=3.5(5) cm
Area of enlarged triangle=
But Beth wrote
Area of enlarged triangle=
She should have multiplied one half (4)(3.5) by 5 squared.