Cost of bag of soil = x-3 where x is the price of a flower pot
41=3x + 5(x-3)
41=3x + 5x -15
41=8x -15
41+15=8x
56=8x
56÷8=x
$7.00=x
7r+8p-(5-rp-rp) where r=3 and p=4
plug in 3 and 4 for r and p where it says in the equation
7(3)+8(4)-(5-(3)(4)-(3)(4))
multiply
21+32-(5-12-12)
21+32-(-19)
two negatives make a positive
21+32+19
=72
Answer:
Step-by-step explanation 10 + 2.50d = 850
David starts with $10 and each day he earns $2.50. The d represents a variable and can be any number.
To find d you must solve the equation.
10 + 2.50d = 850
2.50d = 840 (subtract 10 from 850)
d = 336 (divide 840 by 2.50)
It will take David 336 days to save $850.
Given
and
(say).
Then,

From the above 3 equations,

From the equations, we get

Since
, the negative value is rejected.
