Answer:
21 and 28
Step-by-step explanation:
1) calling the smaller number x and the larger y we can write two equations.
x+y=49 and y+2x=70
2) by reordering the first to read x= 49-y we can then plug it in as the x in the second equation.
y+2(49-y)=70
3) we can then distribute
y+98-2y= 70
and then simplify
y=28
4) then we need to plug y back into the first equation to find the value of x
x+(28)=49
-28 -28
x = 21
5) the numbers are 21 and 28
Answer:
d
Step-by-step explanation:
Answer is the first one, x is the variable
= X
Your answer would be 12.
She can use 12 connecting cubes to make the model in only two ways.
Answer:
D is the correct answer
Step-by-step explanation:
cylinder volume equation: v=h
Water heater x= (8.5)^2 x 48= 10895.04
Water heater y= (9.5)^2 x 44= 12475.26
Water heater z= (10.5)^2 x 32= 11083.54
A is false because water heater Y has the greatest volume
B is false because all the volume are different
C is false because z has the smallest volume