Question

7 is taken away from a, 2 times a divided by 3 times b, half of sum of a and b, 3 multipled by a is increased by 10 time, one third of x is multiplied by sum of y and z, write the following algebraic expression using sign and symbol​

Answer 1

Step-by-step explanation:

Dimension of a closed rectangular wooden box are 18cm,10cm and 6cm, respectively.

The thickness of wood is 21cm

∴ Volume of rectangular wooden block =18×10×6=1080cm3

And, volume of hollow space in rectangular wooden block =17×9×5=765cm3

∴ Volume of rectangular wood =(1080−765)cm3=365cm3

Now, weight of empty box =15kg

∴ Weight of a cubic cm of wood =36515 =211kg

Weight of box filled with sand =100kg

Weight of sand =(100−15)kg=85kg

∴ Weight of a cubic cm of sand =76585kg=91kg

Answer 2

Answer:

3 times c taken away from sum of a and b

and a+b