lettymartinez6842
25.01.2021 •
Mathematics
An average Smart TV costs $500. On Black Friday, the Smart TV goes on sale for $350. By what percent did the TV go on sale?
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Ответ:
30%
Step-by-step explanation:
$500-$350=150
150/500 x 100
=30%
Ответ:
9
Step-by-step explanation:
The area of a parallelogram is equal to the base times the height.
The base is 3x and the height is also 3x so the area will equal
3x × 3x
When you multiply variables you multiply the coefficients and add the exponents so when you multiply 3x and 3x you multiply 3 and 3 and the exponents 1 and 1 so you get 9