Answer:
16
Step-by-step explanation:
(Trust me)
You answer should be the third one,
75 bottles/ 1 minute
Answer:
13.2855 salt
Step-by-step explanation:
31÷7 = 4.4285
4.4285 × 3 = 13.2855 salt
Answer:
The numbers are -3 and 18 .
Step-by-step explanation:
Let us assume that first number be x.
Let us assume that the second number be y.
As given
A first number plus twice a second number is 12 .
Than the equation becomes
x + 2y = 12
As given
Twice the first number plus the second totals 33.
2x + y = 33
Than the two equations are
x + 2y = 12
2x + y = 33
Multiply x + 2y = 12 by 2 and subtracted from 2x + y = 33
2x - 2x + y - 4y = 33 - 24
-3y = 9
![y = \frac{-9}{3}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B-9%7D%7B3%7D)
y = - 3
Put in the equation x + 2y = 12
x + 2 ×-3 = 12
x - 6 = 12
x = 12 + 6
x = 18
Therefore the numbers are -3 and 18 .
Take two points that you found , any 2 points. for example (-2,-4) and (1,-1)
draw them on the graph and than draw a straight line that cross both.
this is the line of your equation