An equation:
It is used to express exact values.
Therefore, we will use an equation when when know that the quantity given is strictly equal to a given value.
Examples:
1- Price of a kilo of apples is $2
This is translated as ........> cost of 1 kilo = $2
2- The length of a ruler is 30 cm
This is translated as ......> length = 30 cm
An inequality:
It is used to show relation or compare between a quantity and a value. Therefore, we use it when we find keywords as "at least, at most, greater than, less than, ..... etc"
Example:
1- The distance between two cities is at least 20 miles.
This means that the distance can be 20 miles or more
This is translated as:
distance ≥ 20 miles
Answer:
A- 200+25x
B- 200+25×4=300
Continued for question B: The input of 4 into "x" indicates how many cans of paint you have bought
Step-by-step explanation:
Answer:
0.125
Step-by-step explanation:
1/8 = 0.125
Answer:
y=
+3
Step-by-step explanation:
1. Replace f(x) to x and replace x with y.
x=5y-15
2. Then, add 15 to both sides
x+15=5y-15+15
5y=x+15
3. Divide both sides by 5
=+
y=+3
4. Enjoy your answer.
