Corresponding measures have the same ratio.
.. (x -1)/4 = (2x +1)/10
.. 5(x -1) = 2(2x +1) . . . . . . multiply by 20
.. 5x -5 = 4x +2 . . . . . . . . eliminate parentheses
.. x = 7 . . . . . . . . . . . . . . . add 5 -4x
x = 7
A vat of water and a weighing scale
Answer:2x-5
Step-by-step explanation:
Answer:
Total cost, c = 7p
Step-by-step explanation:
1pound =$7
Joe buys p pounds,
p pounds = $7 * p
p pounds = 7p