word problems 1.1-1.2 1.3-1.42.1-2.42.5-2.7 10 20 30 40 50 40 30 20 10 50 40 30 20 10 50 40 30 20 10...
TRANSCRIPT
Word Problems
1.1-1.2 1.3-1.4 2.1-2.4 2.5-2.7
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Topic 1 – 10 Points
QUESTION:
•-14=x-12
ANSWER:
•-2
Topic 1 – 20 Points
QUESTION:
•-3(n+6)+10=-8
ANSWER:
•0
Topic 1 – 30 Points
QUESTION:
•0.4r=1.6
ANSWER:
•0.64
Topic 1 – 40 Points
QUESTION:
•2d-15=3
ANSWER:
•9
Topic 1 – 50 Points
QUESTION:
•1.5(q-4)-2=4ANSWER:
•8
Topic 2 – 10 Points
QUESTION:
•-4p=3p+28
ANSWER:
•-4
Topic 2 – 20 Points
QUESTION:
•3(k+5)=-2(3k-6)
ANSWER:
•-1/3 or -0.333
Topic 2 – 30 Points
QUESTION:
•8m+2+4m=2(6m+1)
ANSWER:
•No Solution
Topic 2 – 40 Points
QUESTION:
•Solve the equation for y.•5x-5y=10
ANSWER:
•Y=x-2
Topic 2 – 50 Points
QUESTION:
•The formula for interest is I=Prt. Solve the equation for r.
ANSWER:•I/Pt=r
Topic 3 – 10 Points
QUESTION:
•Tell whether the figures are congruent.
ANSWER:
•Yes
Topic 3 – 20 Points
QUESTION:
•Name the type of transformation of the figuresANSWER:
•Translation
Topic 3 – 30 Points
QUESTION:
•Tell what the transformation is of the figures.
ANSWER:
•Reflection
Topic 3 – 40 Points
QUESTION:
•Are the figures congruent?
ANSWER:
•No
Topic 3 – 50 Points
QUESTION:
•What is the transformation of the figures?
ANSWER:
•Rotation
Topic 4 – 10 Points
QUESTION:
•Tell whether the two triangles are similar.
ANSWER:
•Yes
Topic 4 – 20 Points
QUESTION:
•The polygons are similar. Find x.
ANSWER:
•12
Topic 4 – 30 Points
QUESTION:
•The two figures are similar. Find the ratios (shaded to nonshaded) of the perimeters and of the areas.
ANSWER:
•P=20/15=4/3•A=16/9
Topic 4 – 40 Points
QUESTION:
•The front of the speaker is similar to the front of a speaker in a photo. What is the area of the front of the speaker?
ANSWER:
•216 square inches
Topic 4 – 50 Points
QUESTION:
•What is the transformation of the figures shown?
ANSWER:
•Dilation
Topic 5 – 10 Points
QUESTION:
•The equation R=10A-20 represents the revenue R(in dollars) you make by spending A dollars on advertising. Your revenue totaled $110. How much did you spend on advertising?
ANSWER:
•$13
Topic 5 – 20 Points
QUESTION:
•A car drives 60 miles per hour. Write and solve an equation to find the number of hours it takes to drive 360 miles.
ANSWER:
•60h=360•h=6
Topic 5 – 30 Points
QUESTION:
•You purchase 5 movies and a CD. The cost of the CD is $8.50. Your total bill before tax is $38.45. Write and solve an equation to find the cost of a movie.
ANSWER:
•5x+8.5=38.45•x=5.99
Topic 5 – 40 Points
QUESTION:
•Explain how you know if a dilation is a reduction or an enlargement.
ANSWER:
•It is a reduction when the scale factor is larger than 0, but less than 1.•It is an enlargement when the scale factor is greater than 1.
Topic 5 – 50 Points
QUESTION:
•The ratio of the side length of square A to Square B is 3:5. The perimeter of Square B is 60 feet. What is the area of Square A?
ANSWER:
•9:25=x:225•x=81 square feet