CHAPTER 10 REVIEW.

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Presentation transcript:

CHAPTER 10 REVIEW

Lesson Quiz Solve. 1. – 3 = 10 2. 7y + 25 = –24 3. –8.3 = –3.5x + 13.4 4. = 3 5. The cost for a new cell phone plan is $39 per month plus a one-time start-up fee of $78. If you are charged $1014, how many months will the contract last? x –9 x = –117 y = –7 x = 6.2 y + 5 11 y = 28 24 months

Lesson Quiz 10-2 Solve. 1. 6x + 3x – x + 9 = 33 2. –9 = 5x + 21 + 3x 3. + = 5. Linda is paid double her normal hourly rate for each hour she works over 40 hours in a week. Last week she worked 52 hours and earned $544. What is her hourly rate? x = 3 x = –3.75 5 8 x 8 33 8 x = 28 x = 1 9 16 4. – = 6x 7 2x 21 25 21 $8.50

Lesson Quiz 10-3 Solve. 1. 4x + 16 = 2x 2. 8x – 3 = 15 + 5x 3. 2(3x + 11) = 6x + 4 4. x = x – 9 5. An apple has about 30 calories more than an orange. Five oranges have about as many calories as 3 apples. How many calories are in each? x = –8 x = 6 no solution 1 4 1 2 x = 36 An orange has 45 calories. An apple has 75 calories.

– left over from Friday because Lexi will not let me forget  WARM-UP – left over from Friday because Lexi will not let me forget  An apple has about 30 calories more than an orange. Five oranges have about as many calories as 3 apples. How many calories are in each? An orange has 45 calories. An apple has 75 calories.

Lesson Quiz: Part 1 Solve and graph. 1. 4x – 6 > 10 2. 7x + 9 < 3x – 15 3. w – 3w < 32 4. w +  1 2 3 4 5 6 7 x > 4 -10 -9 -8 -7 -6 -5 -4 x < –6 -18 -17 -16 -15 -14 -13 -12 w > –16 2 3 1 4 1 2 w  3 8 3 8

Lesson Quiz: Part 2 5. Antonio has budgeted an average of $45 a month for entertainment. For the first five months of the year he has spent $48, $39, $60, $48, and $33. How much 1 can Antonio spend in the sixth month without exceeding his average budget? no more than $42

Lesson Quiz: Part 1 Solve for the indicated variable. 1. P = R – C for C. 2. P = 2l+ 2w for l. 3. V = Ah for h. 4. R = for S. C = R - P = l P – 2w 2 = h 3V A 1 3 C – S t C – Rt = S

5. Solve for y and graph 2x + 7y = 14. Lesson Quiz: Part 2 5. Solve for y and graph 2x + 7y = 14. y = – + 2 2x 7 y 4 2 –2 –4

Lesson Quiz 1. Determine if the ordered pair (2, 4) is a solution of the system. y = 2x; y = –4x + 12 Solve each system of equations. 2. y = 2x + 1; y = 4x 3. 6x – y = –15; 2x + 3y = 5 4. Two numbers have a some of 23 and a difference of 7. Find the two numbers. yes ( , 2) 1 2 (–2,3) 15 and 8