Considering the definition of an equation and the way to solve it, the amount of money that the restaurant needs to earn on Sunday is $1431.
An equation is the equality existing between two algebraic expressions connected through the equals sign in which one or more unknown values, called unknowns, appear in addition to certain known data.
The members of an equation are each of the expressions that appear on both sides of the equal sign while the terms of an equation are the addends that form the members of an equation.
The solution of a equation means determining the value that satisfies it. In this way, by changing the unknown to the solution, the equality must be true.
To solve an equation, keep in mind:
Being "x" the amount of money that the restaurant needs to earn on Sunday, and knowing that:
the equation in this case is:
($1445 + $1624 + $x)÷ 3 days= $1500 per day
Solving:
1445 + 1624 + x= 1500×3
3069 + x= 4500
x= 4500 - 3069
x= 1431
Finally, the amount of money that the restaurant needs to earn on Sunday is $1431.
Learn more about equations:
brainly.com/question/4983716
brainly.com/question/13314678
#SPJ1