Page 139 - Algebra 1

Practice Distributed and Integrated
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Safety For every 4 feet a ladder rises, the base of a ladder should be placed
1 foot away from the bottom of a building. If the base of a ladder is 7 feet from the bottom of a building, find the height the ladder rises up the building?
x
7 ft
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What is a term of an algebraic expression?
Write Explain how to use inverse operations to solve _2 x = 8. 3
Physics In physics equations, a change in a quantity is represented by the delta symbol, Δ. A change in velocity, Δv, is calculated using the equation Δv = vf -vi, where vi is the initial velocity and vf is the final velocity. If a cart has an initial velocity of 5 miles per second and experiences a change in velocity of 2 miles
per second, what is the final velocity of the cart? Graph the ordered pair (-2, 6) on a coordinate plane.
Geometry The length of a rectangular picture frame is 3 times the width. a. Draw a picture of the picture frame and label the dimensions.
b. Write an expression for the area of the frame. Complete the table for y = 2x + 7.
Solve _x = 5. 3
x
-5
1
4
y
124
Saxon Algebra 1
Multiple-Choice Which step can you use first to solve -_x = -52? A Multiply both sides by _1 . 9
9
B Multiply both sides by -9.
C Divide both sides by -52. D Divide both sides by 52.
Estimate Alan makes $1 for each snow cone he sells. Alan calculates his profit by subtracting the daily cost of $195 to run the stand from the total number of snow cones he sells each day. How many snow cones does Alan need to sell to make a profit of $200 a day?