A2 Writing Equations in Standard Form

The cost for buying treats to eat during the movie is $5 per drink and $7 per candy. Last week, money was collected for d drinks and c candies. Which of the following expressions gives the total amount, in dollars, collected for food and drink last week?

• $7d+5c$

• $5\left(c+d\right)$

• $12\left(c+d\right)$

• $5d+7c$

• $5\left(c+d\right)+7c$

The price of adult tickets to the school play were $10, and the price of student tickets to the school play were $5. Last month, a adult tickets and s student tickets were sold. Which of the following equations gives the total amount P collected for adult and student tickets?

• $P=10s+5a$

• $P=10a+5s$

• $P=15\left(a\ +s\right)$

• $P=10a\cdot5s$

• $15=P\left(a+s\right)$

The animal shelter takes in dogs and cats. It costs $5 to feed a dog each day and $3 to feed a cat each day. The animal shelter has d dogs and c cats. Which of the following expressions gives the total amount, in dollars, to feed the cats and dogs each day?

• $5\left(c+d\right)+3c$

• $5\left(c+d\right)$

• $8\left(c+d\right)$

• $5c+3d$

• $5d+3c$

The hourly fee to rent a boat at the state park is $7 per boat plus $2 per person riding in the boat. Last weekend, fees were paid for b boats and p persons. Which of the following equations gives the total amount A, in dollars, collected for boat rentals?

• $A=7b+2p$

• $A=7p+2b$

• $A=9\left(b+p\right)$

• $A=7\left(p+b\right)$

• $A=2\left(p+b\right)+7b$

Students have to complete quizzes and homework assignments to pass their math class. Each homework assignment had about 5 questions on it, and each quiz had about 7 questions on it. Last quarter, there were h homework assignments and q quiz assignments. Which of the following expressions gives the total amount of questions that students had to complete last quarter?

• $5q+7h$

• $12\left(q+h\right)$

• $5h+7q$

• $5\left(q+h\right)$

• $5\left(q+h\right)+7h$

Chipotle charges $8.15 for a steak burrito and $7.15 for a chicken burrito. During the lunch rush, Chipotle sold c chicken burritos and s steak burritos. Which of the following equations gives the total amount A, in dollars, Chipotle earned during their lunch rush on steak and chicken burritos?

• $A=15.30\left(c+s\right)$

• $A=7.15s+8.15c$

• $A=7.15c+8.15s$

• $A=7.15\left(c+s\right)+8.15s$

• $A=8.15\left(c+s\right)+7.15c$