Let us say that:
x = hours worked by Wolfgang
y = hours worked by Heinrich
So that:
x = y + 10
14 x + 12 y = 3520
By combining the two equations:
14 (y + 10) + 12 y = 3520
14 y + 140 + 12 y = 3520
26 y = 3380
y = 130 hours
x = y + 10 = 140 hours
<span>So Wolfgang worked 140 hours while Heinrich worked 130 hours.</span>
Answer:
The answer is 6
Step-by-step explanation:
Same as plane surfaces on a regular cuboid
Q1:
Q2:
Q1: 12 : 16 = 3 : 4 =
Q2: 8.3 : 10 =
constant of variation is -3/4