Unit 5 Review (Open Up Resources) - Grade 7

Front

What is the formula to find the new account balance after a transaction?

Back

New Account Balance = Old Account Balance + Transaction Amount.

Front

If an account has an old balance of $437 and a transaction of -$289, what is the new balance?

Back

$148.

Front

How do you solve the equation 4/5z = -4?

Back

Multiply both sides by the reciprocal of 4/5, which is -5, to get z = -5.

Front

What does a negative account balance indicate?

Back

It indicates that the account is overdrawn, meaning the account holder owes money.

Front

In the context of elevations, what does a negative number represent?

Back

A negative number represents a position below sea level.

Front

If a bird is at 15 feet and a shark is at -5.7 feet, how do you find the difference in their elevations?

Back

Use the equation 15 + d = -5.7 to find d, which equals -20.7.

Front

What happens to an account balance when a purchase exceeds the available balance?

Back

The account balance becomes negative, indicating an overdraft.

Front

What is the farthest elevation from sea level in the set: -19, 4.5, 2/3, 10, -0.6?

Back

-19 meters is the farthest from sea level.

Front

What is the result of adding a positive number to a negative number?

Back

The result depends on the absolute values; if the positive number is larger, the result is positive, and if the negative number is larger, the result is negative.

Front

How do you represent a transaction that decreases an account balance?

Back

By using a negative sign in front of the transaction amount.