Answer:
24
Step-by-step explanation:
haha i had a test with the same question, i promise its correct :)
First set up a proportion because they are similar triangles:
9/3x-20 = (72+9)/(56+3x-20)
9/3x-20 = 81/3x+36
9(3x+36) = 81(3x-20)
27x+324 = 243x-1620
1944 = 216x
x = 9
It will take the factory 45 hours to make 30 lawnmowers.
Answer:
-2.23
Step-by-step explanation:
Answer:
false
Step-by-step explanation: