Chapter 10

messersmith_power_basic_college_1e_ch4_7_10

CHAPTER Signed Numbers 10 Math at Work: Loan Officer If you want to own a home, Mariano Marquez is a good person to talk to. As a loan offi cer for a bank, his job is to help people obtain a mortgage loan to buy a house. “I think we all share the dream of owning the roof over our head,” says Mariano. “I try to make that happen for people.” In assisting his customers, Mariano gathers all their fi nancial data—including their savings, their income, their credit card debt, and any outstanding loans they might hold—to create a picture of where they stand in terms of money. He uses this to determine what sort of mortgage loan they can afford. “There’s a lot of sophisticated math that goes into my work,” Mariano explains. “But on a basic level, it’s a matter of adding up all the projected income people have and subtracting their projected expenses. If the resulting number is positive, we can move forward; if the number is negative, we have a problem.” Mariano has a piece of advice for any future homebuyers: Get a handle on your fi nances early. “Even people in college should keep track of how they spend,” Mariano says. “You’d be surprised at how easy it is to save a little bit of money each month.” Of course, the more you have saved up, the easier it is to get a mortgage, or any other kind of loan. We explore signed numbers in this chapter—including the positive and negative numbers Mariano refers to. We also introduce some fi nancial literacy skills that you can start using right away. 713 OUTLINE Study Strategies: Beginning Financial Literacy 10.1 Introduction to Signed Numbers 10.2 Adding Signed Numbers 10.3 Subtracting Signed Numbers 10.4 Multiplying and Dividing Signed Numbers 10.5 The Order of Operations Group Activity emPOWERme: Discover Your Personal Financial Philosophy


messersmith_power_basic_college_1e_ch4_7_10
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