Answer:
n = -1
Step-by-step explanation:
n - 2 = 1/2 (10n+4) // We have the equation.
n - 2 = 5n + 2 // Solve the righ side.
n - 5n = 2 + 2 // Group common terms.
-4n = 4 // Solve.
n = -4/4
n = -1
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Answer:
Base is 3 centimeter and hight is 12 cent.
The value of f(r - 2) is 6r - 5
<h3>What is a function?</h3>
Function can be defined as an expression, rule, or law that defines a relationship between one variable known as the independent variable and another called the dependent variable.
From the information given ,we have;
f(x)= 6x+7, with f ( r - 2)
From here, we have that x = r -2
Now, let's substitute x as r - 2 in the function given;
f(x) = 6x + 7
f(r - 2) = 6 ( r - 2) + 7
Expand the bracket
f(r - 2) = 6r - 12 + 7
collect like terms
f(r - 2) = 6r - 5
Thus, the value of f(r - 2) is 6r - 5
Learn more about functions here:
brainly.com/question/6561461
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Answer:
The best way is for Cheryl to take a survey of a group of seventh graders and average that answer
Step-by-step explanation: