Answer:
20
Step-by-step explanation: multiply
Answer
50mph
Step-by-step explanation:
rt=d use the rate times time equals distance method.
it gives us the time=4, use an exponent to represent the rate(since that's the information we don't have equals 200km
x times 4 = 200km
4x = 200km
divide by 4 to leave the exponent by itself
x = 50km
<h2>
Hello!</h2>
The answers are:
a) The name of function is f.
b) Independent variable : x , dependent variable : y/f(x)
c) The rule that assings exactly one output to the very input is called "function".
d)
<h2>Why?</h2>
Usually, the name of a function is what is out of the parentheses, so the name of the function is "f".
The independent variable of a function is the variable we assign the different values, so, for this case, the independent variable is designated with the letter "x"
The dependent variable is the function itself, it's also called "y", it's called "dependent" variable because its values will always depend on the "independent variable"
A function is a rule that states that there is exactly one output (range value) to the very input (domain value). A function only exists when there is exactly one output value (range) for each input (domain), if there is more than one output for each input, the function does not exist.
Evaluating a function consists of assign values to the independent variable(x), hence:
Have a nice day!
See attached picture for solution:
Answer:
120 is 60% of 200
Step-by-step explanation:
Step 1 = 120 = 60% × Y
Step 2 = 120 = 60/100 × Y
Step 3 = Y = 120 × 100/60
Step 4 = Y = 120 × 100 ÷ 60
Step 5 = Y = 200