Sarah is 14
The twins are 12
The youngest (n) is 7
14+(12+12)+7=45
n=7
The full answer is 28.421856
Answer:
9/16 of the students
Step-by-step explanation:
first you can simplify 15/20 to 3/4
you can simplify 12/16 to 3/4
3/4*3/4=9/16
2.4+3.06=5.46
5.46+.75=6.21
The answer is 6.21
Answer:
Step-by-step explanation:
The material cost of manufacturing gardening scissors when s scissors are produced : 
The labor cost for producing s scissors: 
So, total cost of producing s scissors = 
= 
=
So, total cost for s scissors =
So, manufacturing cost for 1 scissor=
Hence the manufacturing cost per scissors is