1.Write the ratio in the simplest form
45:15
9:3
3:1***
1:3
4:1
2.Solve the following proportion
p/6 =7/8
p=5.25***
p=8
p-10.5
p=42
3.James has a model helicopter. The model is 8 inches long and 7 inches wide. The actual helicopter is 56 inches long. What is the helicopter's actual width, if we assume the model's proportions are accurate?
40
49***
56
60
4.Find the unit rate for 521 miles in 14hrs
0.03 miles/hour
37.21 miles/hour***
521 miles/hour
7,294 miles/hour
5.In six months, 33.6 gallons were used. Find the unit rate
3.6 gallons/month
4.6 gallons/month
5.6 gallons/month***
6.6 gallons/month
6.On a recent day, one U.S dollar was worth 0.82 euros, if you were to exchange 222 euros, how many U.S. dollars would you receive?
88.91
274.07
548.15
179.82****
7.The pair of polygons is similar find the value of X
Larger polygon angles: 60in/15 in
Smaller polygon angles: 10in / x
2.5****
5in***
35***
40****
8.Two ladders are leaning against a wall at the smaller angle as shown, how long is the short ladder
Larger ladder angles: 70ft&50ft
Smaller ladder angles: 20ft
28***
175
25
20
9.
The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20 cm. What is the perimeter of the larger rectangle? (1 point)
320 cm
80 cm
120 cm
60 cm
10.
A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? (1 point)
39m^2****
169m^2
117m^2
142m^2
12.
The width of a picture is 20 cm. Using a color copier, you reduce the width of the picture to 5 cm. What is the scale factor of the dilation? (1 point)
5
1 over 5
4
1 over 4***
13.On a given blueprint, 1inch = 30 feet. If the dimensions of a meeting room on the blueprint are 1.5 inches x 1.25 inches, what are its actual measurements?
4.5 ft x 3.75 ft
20 ft x 24 ft
45 ft x 37.5 ft***
15 ft x 12.5 ft
14. Using 1 inch = 15 feet as the scale factor, what are the blueprint dimensions of a room in a model house that is actually 30 feet x 45 feet?
2 x 3 inch***
3 x 2 inch
2 x 2 inch
3 x 2 inch
15. The scale map is 1 in.:75 mi. How many actual miles does 0.85 inches represent?
88.2 miles***
63.75 miles
95.6 miles
4,681.3 miles
16. The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE?
(1 point)
10 feet
12 feet
17 feet
18 feet
^^^still working on this one, I'm confident about all of my other answers tho :)
Dangit I came to cheat but it didn't work :(
17. a bag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf ball to the bag . he wants the ratio of striped golf balls to remain the same how many of each should he add?
Answer:
white striped
10 6 16
20 12 32
30 18 48
40 24 64
50 30 80
60 36 96
70 42 112
18. The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor.
V(6, 2), W(–2, 4), X(–3, –2), Y(3, –5), scale factor of 2
Answer:
You need to multiply each coordinate by 2, V(12,4), W(-4,8), X(-6,-4), Y(6,-10)
[19 skipped]
20: Use cross products to demonstrate whether or not or the two ratios are equivalent: 4/6 and 14/21
My Answer:
if
4/6= 14/21
then
1= 14 ∗ 6
21∗4
14 x 6 = 84
21 x 4 = 84
therefore, they are equivalent
My name is I think we all came to cheat...
just use unit rate calculater
HALF OF THEM WERE WRONG. but....good thing i didn't put this on my test because i CHECKED THEM ALL FIRST>:3 cya poop brainz UvU
Too many to respond to. However, first 5 are correct.
7, 8, 9, 10 -- I don't know or you haven't posted enough information.
The first 6 are correct.
After this, please do not put more than 5 questions in a post.