Answer:
The last one
Step-by-step explanation:
Trust me and also hope this helps
Answer:
7 and 3 respectively
Step-by-step explanation:
Peanuts (p/lb) = $1.80
Cashews (p/lb) = $4.50
Total pound = 10 pounds
Aggregate amount (at $2.61 per lb) = $26.1
Pound of peanut to buy = x
Pound of cashew to buy = y
x + y = 10..........(i)
1.8x + 4.5y = 26.1.....(ii)
Multiply equ (i) by 1.8 and equ (ii) by 1
1.8x + 1.8y = 18
1.8x + 4.5y = 26.1
Subtract (i) from (ii)
4.5y - 1.8y = 26.1 - 18
2.7y = 8.1
y = 3
Sub y = 3 into (i)
x + y = 10
x + 3 = 10
x = 10 - 3
= 7
Pounds of peanut to buy = 7 pounds
Pounds of cashew to buy = 3 pounds
This would depend on if we assume this is constant or exponential growth. If it is linear then it would be:
600=3m+300
300=3m
100=m
A=100d+300
A(12)=1500 mi^2
If it is exponential:
600=300r^3
2=r^3
r=2^(1/3)
A=300(2)^(d/3)
A(12)=4800 mi^2
Equation pi X r^2 first one = 158.37
second one 50.27