Writing & Solving Equations

Writing & Solving Equations

Writing & Solving Equations

What is the length of the race?

What is the unknown that you need/want to find?

What do you know about the length of a lap?

What operation can you perform on the number of laps to equal the number of laps?

What is the length of the race? 500 mi.

What is the unknown that you need/want to find? The number of laps equal to 500 miles

What do you know about the length of a lap?

What operation can you perform on the number of laps to equal the number of laps?

What is the length of the race? 500 mi.

What is the unknown that you need/want to find? The number of laps equal to 500 miles

What do you know about the length of a lap?

What operation can you perform on the number of laps to equal the number of laps?

Fill in the Blanks

What do you know about the length of a lap?

What operation can you perform on the number of laps to equal the length of the race?

What operation can you perform on the number of laps to equal the length of the race? Multiple the length of a lap (2.5 miles) by the number of laps.

Writing equations :

Writing Equations:

• Ten times a number x is equal to 2.8 times the difference y minus z. 

•  A number m minus 8 is the same as a number n divided by 2.

• The area of a rectangle equals the length times the width. Translate this sentence into a formula.

Writing Equations:

• Ten times a number x is equal to 2.8 times the difference y minus z.  10 × x = 2.8 × (y – z) The equation is 10x = 2.8(y – z).

•  A number m minus 8 is the same as a number n divided by 2.

• The area of a rectangle equals the length times the width. Translate this sentence into a formula.

Writing Equations:

•  A number m minus 8 is the same as a number n divided by 2. m – 8 = n ÷ 2 The equation is m – 8 = 𝑛/2 .

• The area of a rectangle equals the length times the width. Translate this sentence into a formula.

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Writing Equations:

• The area of a rectangle equals the length times the width. Translate this sentence into a formula. Let A = area, ℓ = length, and w = width. Formula: Area equals length times width. A = ℓ × w The formula for the area of a rectangle is A = ℓw.

Multiple Select

1/2(a -b) = 54

• Three times a number t minus twelve equals forty.

• One–half of the difference of a and b is 54

• Three times the sum of d and 4 is 32.

• The area A of a circle is the product of π and the radius r squared.

Multiple Select

3(4 + d ) = 32

• Three times a number t minus twelve equals forty.

• One–half of the difference of a and b is 54

• Three times the sum of d and 4 is 32.

• The area A of a circle is the product of π and the radius r squared.