Answer:
18, 72
Step-by-step explanation:
Two angles are complementary if they sum up to 90°. Call them . From the second part,
The second angle is
X(2+7+9)=3.6
x(18)=3.6
x=3.6/18
x=0.2
2*0.2 : 7*0.2 : 9*0.2
0.4 : 1.4 : 1.8
0.4kg of nickel
1.4kg of zinc
1.8kg of copper
Hope this helps :)
Answer:
the volume is 120
Step-by-step explanation:
the formula for volume with length times width times height. Just multiply 3 x 5 x 8