Answer:
Here is the answer and explain it step by step
Step-by-step explanation:
1080 clothespins makes 90 chairs and we need to find out how many clothespins it takes to make 1 chair.
We can set up a proportion of the number of chairs to the number of clothespins because of the proportional relationship.
x is the number of clothes pins for 1 chair

Cross multiply to get
90*x= 1080*1
Divide both sides by 90 to isolate x
x = 12 clothespins
It takes 12 clothespins to make 1 chair.
x + x+1 + x+2 =81
Simplify:
3x + 3 = 81
Subtract 3 from both sides
3x = 78
Divide both sides by 3
x = 26 or C). 26
Answer:
31.5 cm²
Step-by-step explanation:
Calculate area of a triangle with this formula:
Area =
base * height
Substitute in known values
Area =
7 * 9
Multiply 7 by 1/2
Area = 3.5 * 9
Multiply
Area = 31.5 cm²
Hope this helps :)
No, a person weight on average anywhere from 40-80+kg depending on sex and build