Answer:
50 items were sold for $75
35 items were sold for $90
Step-by-step explanation:
75 x 50 = 3750
90 x 35 = 3150
3750 +3150 = 6,900
{50a+50c=800
{65a+75c=1100
{15a+15c=240
{13a+15c=220
2a=20
a=10
Golf course charge for adults $10
Answer:
7i + 11j
Step-by-step explanation:
DE = 8i + 6j - i + 5j
= 7i + 11j
Use the formula of the present value of annuity ordinary which is
Pv=pmt [(1-(1+r)^(-n))÷r]
Pv present value 50760
PMT annual Social Secrity benefit ?
R average annual salary0.42
N time 35 years
We need to solve for pmt
PMT=Pv÷[(1-(1+r)^(-n))÷r]
PMT=50,760÷((1−(1+0.42)^(−35))÷(0.42))
=21,319.20