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# Splash Screen - PowerPoint PPT Presentation

Splash Screen. Lesson 1-7 Writing Algebraic Equations. (over Lesson 1-5). A B C D. Evaluate the expression | a | + c – b if a = –5, b = 3, and c = –6. A. 6 B. 4 C. –4 D. –8. (over Lesson 1-5). A B C D.

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Lesson 1-7

Writing Algebraic Equations

• A

• B

• C

• D

Evaluate the expression | a | + c – bif a = –5, b = 3, and c = –6.

A. 6

B. 4

C.–4

D. –8

• A

• B

• C

• D

Evaluate the expressiona – c – b if a = –1, b = 3, and c = –5.

A. -4

B.7

C. 1

D.–1

• A

• B

• C

• D

Evaluate the expressiona – c+ b if a = –3, b= –3, and c = –5.

A. -1

B. 4

C.1

D. –8

• A

• B

• C

• D

Evaluate the expression | a | – c + b if a = 1, b = 3, and c = –5.

A.–9

B. 4

C. –7

D. 9

• A

• B

• C

• D

Evaluate– 5 –(-6) + (-2) - 3

A. 4

B. 3

C.–4

D.8

Multiply 3(–4).

• A

• B

• C

• D

A. 12

B. 7

C. –1

D. –12

• A

• B

• C

• D

Multiply –6(–2).

A. 12

B. 4

C. –8

D. –12

7

(over Lesson 1-6)

• A

• B

• C

• D

A. 55

B. 6

C. –5

D. –6

8

• equation

A mathematical sentence containing two expressions separated by an equals (=) sign.

Assigning a variable to represent the unknown quantity.

• define a variable

Standard 7AF1.1 situations.Use variables and appropriate operations to write an expression, an equation, an inequality, or a system of equations or inequalities that represents a verbal description (e.g. three less than a number, half as large as area A).

Standard 7AF1.4Use algebraic terminology(e.g. variable, equation, term, coefficient, inequality, expression, constant) correctly.

Write an Algebraic Equation situations.

CONSUMER ISSUESThe cost of a book purchased online plus \$5 shipping and handling comes to a total of \$29. Write an equation to model this situation.

WordsCost of book plus cost of shipping is equal to total cost.

VariableLet b represent the cost of the book.

Equationb + 5 = 29

Write an Equation to Solve a Problem situations.

NUTRITIONA box of oatmeal contains 10 individual packages. If the box contains 30 grams of fiber, write an equation to find the amount of fiber in one package of oatmeal.

WordsTen packages of oatmeal contain 30 grams of fiber.

VariableLet f represent the grams of fiber per package.

EquationTen packages contain 30 gramsof oatmeal of fiber.

10f = 30

Write an Equation to Solve a Problem situations.

BIRTHDAY After receiving \$25 for her birthday Latisha had \$115. How much did Latisha have before receiving the \$25 as a present?

WordsLatisha received \$25 & now has \$115.

VariableLetxrepresent the amount of money Latisha had before her birthday.

EquationPrior \$ plus combined isplus \$25 equal to.

x + \$25 = \$115

The eighth grade has \$35 less in its treasury than the seventh grade has. Given s, the number of dollars in the seventh grade treasury, which equation can be used to find e, the number of dollars in the eighth grade treasury?

A.e = 35 – s

B.e = s – 35

C.e = s ÷ 35

D.e = 35 ●s

Write seventh grade has. Given the price of a toy plus \$6 shipping is \$35 as an algebraic equation.

• A

• B

• C

• D

A.p – 6 = 35

B.p + 6 = 35

C.p + 35 = 6

D.p – 35 = 6

NUTRITION seventh grade has. Given A particular box of cookies contains 10 servings. If the box contains 1,200 Calories, write an equation to find the number of Calories in one serving of cookies.

• A

• B

• C

• D

A. 10c = 1,200

B.c÷ 10 = 1,200

C. 1,200c = 10

D.c÷ 1,200 = 10

The high temperature on Friday was 6 degrees less than the high temperature on Thursday. Given t, the high temperature on Thursday, which equation can be used to find f, the high temperature on Friday?

• A

• B

• C

• D

A.f = t – 6

B.f = t ÷ 6

C.f = 6 ●t

D.f = 6 – t

Chapter Cumulative Review Part II high temperature on Thursday. Given

(over Lesson 1-4) high temperature on Thursday. Given

• A

• B

• C

• D

If the outside temperature was –6° F, and then dropped by 10°, what would be the temperature?

A. 4° F

B. –4° F

C. –16° F

D. 16° F

(over Lesson 1-5) high temperature on Thursday. Given

• A

• B

• C

• D

Subtract |–3| – |–7|.

A. 10

B. 4

C. –4

D. –10

Divide high temperature on Thursday. Given

(over Lesson 1-6)

• A

• B

• C

• D

A. –9

B. –8

C. 9

D. 64

(over Lesson 1-6) high temperature on Thursday. Given

• A

• B

• C

• D

What is the value of ab – c, if a = –3, b = 4, and c = –2?

A. –14

B. –10

C. 10

D. 12

(over Lesson 1-7) high temperature on Thursday. Given

• A

• B

• C

• D

Write the verbal phrase 5 years younger than Mary as an algebraic expression.

A.x + 5

B. 5 – x

C.x – 5

D.x● 5

(over Lesson 1-7) high temperature on Thursday. Given

• A

• B

• C

• D

Write the verbal phrase \$4.75 tax added to the total as an algebraic expression.

A.b – \$4.75

B. \$4.75 + b

C. \$4.75 – b

D. \$4.75 ×b