a is the beggining number and n is the amount of times needed to do this. if is 17 you would need to subtract 7 from the originol number 12 (a) that many times.
Answer: Her measuring cup has 8.25 mL of medicine.
Step-by-step explanation:
As per given,
In 11 mL of medicine, there are 20 drops.
That means quantity in 1 drop = 
mL
Now , the quantity in 15 drops = 15 x quantity in 1 drop
= 
= 8.25 mL
Hence, her measuring cup has 8.25 mL of medicine.
Answer:
1. 4(a-44) = 64
2. Sarah is 60 years old
Step-by-step explanation:
Given that 64 is 4times the difference between a and 44 and she is older than 44:
1.
4(a-44) = 64
Next is solve,
2.
4(a-44) = 64
a - 44 = 16
a = 60
Answer:
24.2
Step-by-step explanation:
37.45-13.25=24.2
24.2/2=12.1
each friend contributes $12.1
