Answer:
C. 75 cu cm
75 cm³
Step-by-step explanation:
Volume of the cake when Salim bought it = length × width × height
= 15 cm × 6 cm × 5 cm
= 450 cm³
Volume of the cake after Salim cut a piece = length × width × height
= 12.5 cm × 6 cm × 5 cm
= 375 cm³
volume of the piece that Salim ate = Volume of the cake when Salim bought it - Volume of the cake after Salim cut a piece
= 450 cm³ - 375 cm³
= 75 cm³
volume of the piece that Salim ate = 75 cm³
Answer:
D
Step-by-step explanation:
You add the "columns." The equations are arranged so that like terms are stacked vertically. 3x and 7x are like terms; when you add them, you get 10x.
-y and y are like terms; when you add them, you get 0 (that doesn't appear in the sum).
-5 and 15 are like terms; add them to get 10.
The sum of the two equations is the equation 10x = 10.
Answer: 7995.812
Step-by-step explanation:
Factor out the GCF. Do not forget to include the GCF as part of your final answer. In this case, the three terms have a 3x in common, which leaves: Step 3: Multiply the leading coefficient and the constant, that is multiply the first and last numbers together.