Writing Equations from Situations
Michael's new puppy is
8 1/3
inches long. His cat is 3 inches shorter than his puppy. Write an equation that could represent height (h) of the cat.
8 1/3 - 3 = h
8 1/3 - h = 3
8 1/3 = h + 3
8 1/3 = 3 + h
x + 17 = 66
x = 49
7x=56
x = 8
The area of a rectangle measures 45 square inches. If the length is 5 inches, solve for the width of the rectangle. Use the formula 45 = 5w.
w = 9 inches
Gerald had 5.6 gallons of gas in his car. After driving to Palisade, he now has 3.8 gallons of gas. Write an equation that can be used to find how many gallons of gas (g) that Keegan has.
5.6 - g = 3.8
5.6 - 3.8 = g
3.8 + g = 5.6
g + 3.8 = 5.6
23 + y = 110
y = 87
x/3 = 9
x = 27
The width of a rectangle is 7 inches. If the area is 105 square inches, what is the length of the rectangle?
Mr. Williams needs to bake 53 batches of cookies for fundraising. He has already made 26 batches. Write 3 different equations that could represent the situation.
53 - 26 = c
53 - c = 26
26 + c = 53
c + 26 = 53
y - 2/3 = 1/6
y = 5/6
4/5 x = 2/15
x=
1/6
The area of a rectangle is
5 2/5
square inches. If the length is
4 1/2
inches, what is the width of the shape?
w = 1 1/5