Answer:
L = 2,
O = 31
Step-by-step explanation:
First using the givens, write out some formulas.
Heavy equipment operators = O
General laborers = L
- O + L = 33
- 138O + 87L = 4044
Now use substitution, it doesn't matter which one you substitute.
- O = -L +33
- 138( -L + 33 ) + 87L = 4044
Distribute and solve for L.
- -138L + 4554 + 87L = 4044
- -138L - 87L = 4044 - 4554
- -225L = -510
- L = -510/-225
- L = 2
L = 2, meaning number of laborers employed is 2.
Now plug 2 = L into one of the original equations.
- O + L = 33
- O + 2 = 33
- O = 33 - 2
- O = 31
O = 31, meaning number of heavy equip. operators employed is 31.
165
X= ———
14
1 + 7/30 (4x) = 20
X = 4 and x = -4 hope this helps
2.9% apr
5 years to pay
loan= 21450-16450= $5000
apr = .029
.029/12 =.0024
.0024(5000)=12.08
.0024+1=1.0024
1.0024^(5*12)= 1.15
1/1.15= .86
1-.86 = .14
60/ .14= $294.85$
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