15:12 is the equivalent ratio of 5:4
Answer:
The amount put in the account that paid 7% ( Fund B) was $6,500
Step-by-step explanation:
Let
x -----> the amount put in the account that paid 5% (Fund A)
$10,000-x -----> the amount put in the account that paid 7% (Fund B)
in this problem we have
so
therefore
The amount put in the account that paid 7% ( Fund B) was $6,500
Answer: A. (3,-2)
Step-by-step explanation:
Solve by Substitution :
// Solve equation [2] for the variable x
[2] 4x = 5y + 22
[2] x = 5y/4 + 11/2
// Plug this in for variable x in equation [1]
[1] 2•(5y/4+11/2) + 5y = -4
[1] 15y/2 = -15
[1] 15y = -30
// Solve equation [1] for the variable y
[1] 15y = - 30
[1] y = - 2
// By now we know this much :
x = 5y/4+11/2
y = -2
// Use the y value to solve for x
x = (5/4)(-2)+11/2 = 3
Solution :
{x,y} = {3,-2}
Answer:
141
Step-by-step explanation:
N - 36 = 135 - 30
N - 36 = 105
N = 105 + 36
N = 141
