Answer:
Let Quarters be q and Dimes be d
q + d >20
2q +d >20
d > 20 - 2q
Hope This Helps! (and that you get it right!)
Answer:
The number of pounds of:
Decaffeinated coffee = x = 5 pounds
Regular coffee = y = 9 pounds
Step-by-step explanation:
A 14 -pound mixture of coffee that contains both decaffeinated and regular coffee costs $37. The decaffeinated coffee costs $2 per pound, and the regular coffee costs $3 per pound.
Let the number of pounds of:
Decaffeinated coffee = x
Regular coffee = y
Hence, our system of equations =
x + y = 14..... Equation
x = 14 - y
2x + 3y = 37....... Equation 2
We substitute 14 - y for x in Equation 2
= 2(14 - y) + 3y = 37
= 28 - 2y + 3y = 37
= - 2y + 3y = 37 - 28
= y = 9 pounds
Solving for x
x = 14 - y
x = 14 - 9
x = 5 pounds
Therefore,
The number of pounds of:
Decaffeinated coffee = x = 5 pounds
Regular coffee = y = 9 pounds
Answer:
You have 45 cents that you picked out and put on the counter .
The length of your legs is determined by diet, exercise, and genes, and is not influenced by the length of a board.
Answer:
4x=3(x+1)
Step-by-step explanation:
Perimeter of the square with side length x is 4x
Perimeter of the triangle with side length x+1 is
3*(x+1)
Given, both are equal,
4x = 3(x+1)