The number of customers at a new taco truck triples every day for a week. the function f(x) = 3^x represents the number of customers on day x. on what day was there 243 customers? write an equation to solve the problem.

Equation to solve the problem :

There was 243 customers on 5th day .

Step-by-step explanation:

Given: The number of customers at a new taco truck triples every day for a week. the function represents the number of customers on day x.

Substitute f(x) =243 in the given equation , we get

Also, we know that

The bases are same it implies the exponents must be equal.

Hence, There was 243 customers on 5th day .

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.