Answer:
Answer: Janet is 16, and David is 11.
Step-by-step explanation:
Let the ages be j and d.
j = d + 5
j + d = 27
Substitute d + 5 for j in the second equation.
d + 5 + d = 27
2d + 5 = 27
2d = 22
d = 11
Substitute 11 for d in the first equation.
j = d + 5
j = 11 + 5
j = 16
Answer: Janet is 16, and David is 11.
Answer:
343 cubic units^3
Step-by-step explanation:
its a cube which means all the sides are the same length, multiply lwh (length x width x height), which would be 7x7x7 or 7^3.
Answer:
#11 : 14 cars
#12 : 8+6+4=18
Step-by-step explanation:
