Answer: 
Step-by-step explanation:
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Answer-
Answer:
10x=4
x=4/10
x=2/5
Step-by-step explanation:
If you would like to know what is the unit price for the hair shampoo, you can calculate this using the following steps:
500 ml ... $2.10
100 ml ...$x = ?
500 * x = 2.10 * 100 /500
x = 2.10 * 100 / 500
x = $0.42
The unit price for the hair shampoo is $0.42.
If we firstly consider only the terms in x.
subtract 2x from both sides of the equation
⇒5+2x
−2x=2x−2x
+6
Observe that the x terms are eliminated and we are left with
5+0=0+6 that is 5=6 which is invalid
There is no solution to this equation.
Answer:
9.0
Step-by-step explanation:
x = 7 / cos 39°
= 7 / 0.7771
= 9.0
