Exam 3: Linear Equations and Inequalities in Two Variables; Functions

Choose the one alternative that best completes the statement or answers the question. Solve the problem. -Two pages that face each other in a book have 389 as the sum of their page numbers. What is the number of the page that comes first?

Solve the problem. -Solve F = C + 32 for C

Provide an appropriate response. -After working correctly through several steps of the solution of a linear equation, a student obtains the equation 6x = 5x. Then the student divides each side by x to get 6 = 5 and gives ∅ as the answer. Is this correct? If not, explain why.

Solve the problem. -Find the missing length in the similar triangles.

Choose the one alternative that best completes the statement or answers the question. Solve the problem. -On August 1, the Eblin family received 31 pieces of mail, consisting of magazines, bills, letters, and ads. If they received the same number of magazines as letters, three more bills than letters, and five more ads than bills, how many magazines did they receive?

Solve the equation. -- x = -12

Solve the problem. -In the previous baseball season, team A won the most games of any major league team. Team A won 88 less than four times as many games as they lost. They played 162 regular-season games. How many wins and losses did team A have?

Solve the formula for the specified variable. -A = h(b₁ + b₂) for b₁

Write an equation using the information given in the problem. Use x as the variable. -When a number is divided by 6, the result is 8.

Choose the one alternative that best completes the statement or answers the question Solve the equation. -4r + 3 = 23

Solve the equation. -0.25( 60) + 0.4x = 0.3( 60 + x)

Translate the statement into an inequality. Use x as the variable. -The jet's speed exceeded 513 mph.

Express the phrase as a ratio in lowest terms. -27 mi to 6 mi

Solve the equation. - =

Find the measure of each marked angle. -

Solve the problem. -During the first four months of the year, Jack earned and If Jack must have an average salary of at least in order to earn retirement benefits, what must Jack earn in the fifth month in order to qualify for benefits?

Decide whether the proportion is true or false. - =

Choose the one alternative that best completes the statement or answers the question. Solve the problem. -A reservation clerk worked 9.45 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering new reservations?

Use a formula to solve the problem -A circle has a circumference of 46? meters. Find the radius of the circle.

Solve the formula for the specified variable. -A = bh   for h