B is your answer
- because A) just doesn't make sense at all.
C) 4x can't factor into 6
D)-4 times 4x would make a -16x
Its A. multiply both sides by 3
Answer:
1x+ 1y =11
10x + 5y = 80
x = the cost of a taco = $5
y = the cost of a burrito = $6
Step-by-step explanation:
x = the cost of a taco
y = the cost of a burrito
1x+ 1y =11
10x + 5y = 80
rearange 1st equation as y = 11 -x and plug in into the 2nd one for y:
10x + 5( 11-x) = 80 distribute left side
10x + 55 - 5x = 80 combine like terms
10x - 5x = 5x
5x + 55 = 80 subtract 55 from both sides
5x = 80 - 55
5x = 25 divide by 5
x = 5
plug in for y in 1st equation y = 11--x =11-5 = 6
Answer: A = $4,830.00
(I = A - P = $2,530.00)
Step-by-step explanation:
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 5.5%/100 = 0.055 per year.
Solving our equation:
A = 2300(1 + (0.055 × 20)) = 4830
A = $4,830.00
The total amount accrued, principal plus interest, from simple interest on a principal of $2,300.00 at a rate of 5.5% per year for 20 years is $4,830.00.
