Answer:
Step-by-step explanation:
#1) 
∡C =62.49
Answer:
Interest earned is $58.2
Amount in account is $544.2
Step-by-step explanation:
To calculate the simple interest, we make use of the simple interest formula.
Mathematically;
I= PRT/10”
whereI is the interest
P is the amount deposited which is the principal and is 485
R is the rate which is 3% or simply 3/100 = 0.03
T is time which is 4 years
Plugging the values, we have
I = (485 * 3 * 4)/100 = $58.2
The amount of money in the account will be the interest plus the principal.
This is $58.2 + 485 = $543.2
Answer:
1. x = 2 y = 1
2. x = 17 y = 29/3
Step-by-step explanation:
1. Use elimination
-4x+3y=-5
4x-5y=3
x's cancel, so add them
-2y = -2
y = 1
substitute
4x -5(1) = 3
4x - 5 = 3
4x = 8
x = 2
2. Use elimination
2x+3y=36
10x-6y=12
Multiply top equasion by 5
10x+30y = 360
10x-6y = 12
x's cancel so subract
36y = 348
y = 29/3
Substitute
2x+3(2/3)=36
2x+2 = 36
2x = 34
x = 17
Answer:
a
Step-by-step explanation:
yes because each x value has exactly one corresponding y value
