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7thgrade math formu
| Question | Answer |
|---|---|
| Area of a rectangle | IxW |
| Area of a trangle | (bxh)/2 |
| Area of a circle | TTr^2 |
| Circumference of a circle | 2TTr |
| Volume of a rectangular prism | Ixwxh |
| Volume of a triangular prism | (bxhxh)/2 |
| Volume of a Cylinder | TTr^2h |
| Surface Area of a rectangular prism | Mad! |
| Percent Proportion | is/of=%/100 |
| Percent of change proportion | Change / Original = %/ 100 |
| Surface Area of a Cylinder | 2TTr^+2TTrh |
| Imterest Formula | I=PxRxT |
| Sales tax | total cost= Original price - Tax amount. Discount amt. = $ x tax %(as a decimal) |
| Tip | total cost= Original price - Tip amount. Tip amt. = $ x Tip %(as a decimal) |
| Discount | total cost= Original price - Tax amount. Discount amt. = $ x discount %(as a decimal) |
| Commission | C=$x%(as a decimal) |
| Mean | Sum of all # divied by the total items |
| InterQuartile Range | Upper Quartile- Lower Quartile |
| Range | Upper Extreme - Lower Extreme |