STAAR Review Week #4

Front

What is the value of h in the equation 2.3 + h = 7.8?

Back

h = 5.5

Front

If a rectangular runway has an area of 63.9 square yards and a width of 2.3 yards, what is the length?

Back

Length = 28.4 yards

Front

How much does one pound of coffee cost if 12 pounds cost $45?

Back

Cost per pound = $3.75

Front

What situation can be represented by the equation 17x = 340?

Back

The area of a garage floor is 340 square feet. The width of the garage floor is 17 feet. Find x, the length of the garage floor in feet.

Front

What does the inequality 360 ≥ 272 + x represent in a real-life scenario?

Back

Cesar has a $360 limit on his credit card. He buys a laptop for $272 with the card, and he wants to buy software as well. What are the prices of software he can afford?

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

How do you solve for x in the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to get 2x = 8, then divide by 2 to find x = 4.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the other side.