Answer:
Juan has to work at least 21 weeks.
Step-by-step explanation:
Juan earns $3 a day, then he earns $21 per week.
Let x be the number of weeks Juan works. He will earn $21x in x weeks.
Juan has saved $213,
He earns $21x,
Juan's total earnings are $213+$21x.
He needs to save at least $654, so
Juan has to work at least 21 weeks.
Answer:
30 cubic centimeters
Step-by-step explanation:
The edge length given in the question for one cube is cm.
We know volume of a cube with edge length is calculated as
Thus volume of one cube = cubic centimeters
So,
The volume of 810 cubes = = 30 cubic centimeters
As the prism is filled with total 810 cubes, so the volume of the prism will be equal to the volume of 810 cubes i.e. 30 cubic centimeters.