Answer:
15 Nuevo soles
Step-by-step explanation:
For every $1 you get 3 Nuevo soles
When exchanging $5 for a foreigner or local with $
Amount of Nuevo soles=3*5=15 Nuevo soles
It means one will receive a maximum of 15 Nuevo soles when he or she exchanges $5.
Therefore, Ans=15 Nuevo soles
Answer: The second choice.
Step-by-step explanation: I don't believe anyone will read this and I don't want to waste my time typing this pointless explanation.
Step 1:
Line up respective variables in column.
.................(1)
.................................(2)
Step 2:
We need to multiply first equation with -2 so that the coefficient of b becomes equal and opposite of -8.
*2
...................(3)
Step 3:
Add equation (2) and (3)
The b terms will cancel out and we are left with only a terms.
-11a = 22
dividing both sides by -11
a=-2
Step 4:
plug this value of a in equation (1) to find value of b,
b=-9
Answer : a=-2 and b =-9
Answer:
Luis has 30 cards
Step-by-step explanation:
To solve this problem, we need to setup a system of equations.
If we call the amount of cards Juan has "J", Pedro "P", Maria "M" and Luis "L", we have that:
J + P + M + L = 62
P = J/3
M = J - 3
L = 2J
Substituting P, M and L in the first equation, we have:
J + J/3 + J - 3 + 2J = 62
13J/3 = 62 + 3
13J = 65 * 3
J = 15 cards
The amount of cards Luis has is:
L = 2J = 2 * 15 = 30 cards
