Register
A corner store sells two kinds of baked goods. Cakes and pies. Cakes costs $5 and pie cost $7. They sold 15 baked goods for 91$. How many cakes didthey sell?
42.7k views
5 votes
A corner store sells two kinds of baked goods. Cakes and pies. Cakes costs $5 and pie cost $7. They sold 15 baked goods for 91$. How many cakes didthey sell?

User Safex
by
8.0k points

1 Answer

2 votes
Cake=x
Pie=y

x+y=15
5x+7y=91

(x+y=15)-7
5x+7y=91

-7x+(-7y)=-105
5x+7y=91

-2x=-14
x=7

They sold 7 cakes
User FlyingLizard
by
8.1k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
Link Copied!