Answer:
the point of interception is where the graphs meets
in this case we will solve using substition method
x + 5y = 8 .... 1
-x + 2y = -1 .....2
solve for the equation
x = 8 - 5y ...... 3
solve the equation in equation 2
-x + 2y = -1
-(8-5y ) + 2y = -1
-8 +5y + 2y = -1
7y = -1 + 8
7y = 7
divided by 7 on both sides
y = 1
solve the value of y in equation 3
x = 8 - 5y
x = 8 - 5(1)
x = 8 -5
x = 3
the point of interception (3 ; 1)
A= P(1+r/n)^nt
P=20,000
r=2.75%/100=0.0275
n=365
t= 10 and 15
Will their money double within 10 years?
A=20,000(1+0.0275/365)^365t
=20,000(1.00007534)^365(10)
=26,330.340 --> $26,330.34
No
Will their money double within 15 years?
=20,000(1.00007534)^365(15)
=30,211.321 --> $30,211.32
Step-by-step explanation:
The existence of a unit rate implies that you have TWO variables. Here you list only one: $.
If you pay $2.98 for 6 units of something, such as pieces of fruit, then the unit rate would be:
$2.98
----------------------- = $0.50/piece
6 pieces of fruit
Answer: -4uv^2
Multiply 4 by -1