"); document.writeln(""); document.close(); return(false); } function GetResponse(answerIndex, answer) { var listIndex; var responseText; if (listMap.charAt(answerIndex) == "1") { listIndex = answer.selectedIndex; responseText = answer.options[listIndex].value; } else responseText = StripSpaces(answer.value); return(responseText); } function ScoreAnswer(answerIndex, responseText) { var listIndex; var answerText; answerText = ansMap[answerIndex]; if (qtypeMap.charAt(answerIndex) == "5") return(NumericCompare(responseText, answerText)); else if (qtypeMap.charAt(answerIndex) == "6") return(MultiCompare(responseText, answerText)); else if (responseText.toUpperCase() == answerText.toUpperCase()) return(true); else return(false); } function BuildPrefixText(answerIndex, responseText, isCorrect) { var text; var listIndex; text = "
"
		if (isCorrect)
			text += ""
		else
			text += ""

		if (listMap.charAt(answerIndex) == "1") {
			if (responseText.length == 0)
				responseText = " ";
			text += " " + responseText + " ";
		}

		text += "
" return(text); } function StripSpaces(s) { var len; var i; len = s.length; for (i=len - 1; i >= 0 && s.charAt(i) == " "; --i) len = i; if (len == 0) s = ""; else if (len != s.length) s = s.substring(0, len); return(s); } function TranslateHtmlString(text) { var newText; var replaceString; var position; var length; var breakPos; var skipExtra; var i; newText = ""; position = 0; length = text.length; while (position < length) { skipExtra = 0; breakPos = -1; for (i=position; i < length && breakPos < 0; ++i) { switch(text.charAt(i)) { case '>': replaceString = ">"; breakPos = i; break; case '<': replaceString = "<"; breakPos = i; break; case '&': replaceString = "&"; breakPos = i; break; case '\r': if ((i + 1) < length && text.charAt(i + 1) == '\n') skipExtra = 1; replaceString = "
"; breakPos = i; break; case '\n': replaceString = "
"; breakPos = i; break; case ' ': if ((i + 1 < length) && text.charAt(i + 1) == ' ') { replaceString = " "; breakPos = i; } break; } } if (breakPos < 0) { newText += text.substring(position, length); position = length; } else { if (breakPos > position) newText += text.substring(position, breakPos); newText += replaceString; position = breakPos + 1 + skipExtra; } } return(newText); } function FixMCNotes(notesText, studentText) { var displayText; var searchText; var upperNotes; var charCode; var startIndex; var endIndex; displayText = ""; if (notesText.length > 0) { if (studentText.length > 0) { upperNotes = notesText.toUpperCase(); studentText = studentText.toUpperCase(); charCode = studentText.charCodeAt(0); searchText = "/" + String.fromCharCode(charCode) + "/"; startIndex = upperNotes.indexOf(searchText); if (startIndex >= 0) { startIndex += searchText.length; searchText = "/" + String.fromCharCode(charCode + 1) + "/"; endIndex = upperNotes.indexOf(searchText, startIndex); if (endIndex < startIndex) endIndex = notesText.length; displayText = notesText.substring(startIndex, endIndex); } } if (displayText.length == 0 && notesText.charAt(0) != "/") displayText = notesText; } return(displayText); } function NumericCompare(s1, s2) { var s1Sign; var s2Sign; var tempString; var decimalCount; var decimalPos; var numToDelete; var len; var ch; var i; s1.toUpperCase(); s2.toUpperCase(); if (s1 == s2) return(true); else { s1Sign = 1; s2Sign = 1; tempString = ""; for (i=0; i < s1.length; ++i) { ch = s1.charAt(i); if (ch == "-" && tempString.length == 0) s1Sign = -1; else if ((ch >= "0" && ch <= "9") || ch == ".") tempString += ch; } s1 = tempString; decimalCount = 0; decimalPos = -1; for (i=0; i < s1.length; ++i) { if (s1.charAt(i) == '.') { ++decimalCount; if (decimalPos < 0) decimalPos = i; } } if (decimalCount == 1 && decimalPos >= 0) { len = s1.length; for (i=len - 1; i >= decimalPos; --i) { if (i == decimalPos || s1.charAt(i) == '0') len = i; else break; } if (len < s1.length) s1 = s1.substring(0, len); if (s1.length == 0) s1 = "0"; } numToDelete = 0; for (i=0; i < s1.length; ++i) { if (s1.charAt(i) == "0") ++numToDelete; else break; } if (numToDelete > 0) { if (numToDelete == s1.length) --numToDelete; if (numToDelete > 0) s1 = s1.substring(numToDelete); } ///////////////////////////////////////////// tempString = ""; for (i=0; i < s2.length; ++i) { ch = s2.charAt(i); if (ch == "-" && tempString.length == 0) s2Sign = -1; else if ((ch >= "0" && ch <= "9") || ch == ".") tempString += ch; } s2 = tempString; decimalCount = 0; decimalPos = -1; for (i=0; i < s2.length; ++i) { if (s2.charAt(i) == '.') { ++decimalCount; if (decimalPos < 0) decimalPos = i; } } if (decimalCount == 1 && decimalPos >= 0) { len = s2.length; for (i=len - 1; i >= decimalPos; --i) { if (i == decimalPos || s2.charAt(i) == '0') len = i; else break; } if (len < s2.length) s2 = s2.substring(0, len); if (s2.length == 0) s2 = "0"; } numToDelete = 0; for (i=0; i < s2.length; ++i) { if (s2.charAt(i) == "0") ++numToDelete; else break; } if (numToDelete > 0) { if (numToDelete == s2.length) --numToDelete; if (numToDelete > 0) s2 = s2.substring(numToDelete); } if (s1Sign == s2Sign && s1 == s2) return(true); } return(false); } function MultiCompare(responseText, answerText) { var startIndex; var endIndex; var partialText; responseText = responseText.toUpperCase(); answerText = answerText.toUpperCase(); startIndex = 0; do { endIndex = answerText.indexOf("\r", startIndex); if (endIndex < 0) partialText = answerText.substring(startIndex); else partialText = answerText.substring(startIndex, endIndex); if (responseText == partialText) return(true); startIndex = endIndex + 1; } while (endIndex > 0); return(false); } function FixMTF(f) { var text; var letter; var theList; var listIndex; var number; var i; for (i=0; i < f.length; ++i) { if (f.elements[i].name.indexOf("MTF:") == 0) { number = parseInt(f.elements[i].name.substring(4), 10); theList = f["MTF-" + number + "-1"]; if (theList) { listIndex = theList.selectedIndex; letter = theList.options[listIndex].value; } else letter = ""; text = StripSpaces(f["MTF-" + number + "-2"].value); if (text == "") f.elements[i].value = letter; else f.elements[i].value = letter + "," + text; } } } function AllowReset() { return(window.confirm("Do you want to clear all of your answers?")); } // -->
 
Name: 
 

Unit 3 C Study Guide


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
Use Evan's Model Car Collection table.
EVAN’S MODEL CAR COLLECTION
Color
Number of Cars
Red
12
Blue
4
Black
6
Silver
2

Evan wants to display his model cars on 8 shelves. How many model cars will be on each shelf?
a.
24 model cars
c.
11 model cars
b.
16 model cars
d.
3 model cars
 

 2. 
Kueng bought 30 carnival tickets. He gave 4 tickets to each of his 3 sisters. How many tickets did Kueng have left?
a.
12 tickets
b.
18 tickets
c.
26 tickets
d.
42 tickets
 

 3. 
There are 24 girls and 32 boys in the art club. Mrs. Chin put 8 students in each group. How many groups did she make?
a.
6 groups
b.
7 groups
c.
8 groups
d.
56 groups
 

 4. 
At a sporting goods store, baseballs cost $7 each. Coach Lin bought 8 baseballs and Coach Trenton bought 9 baseballs. How much did the coaches spend altogether?
a.
$119
b.
$63
c.
$56
d.
$17
 

 5. 
Seven out of the nine planets in the Solar System have natural satellites (moons). Mars has 2 natural satellites. Neptune has 4 times as many as Mars. Jupiter has 28 natural satellites. How many more natural satellites does Jupiter have than Mars and Neptune combined?
a.
18 natural satellites
c.
22 natural satellites
b.
20 natural satellites
d.
24 natural satellites
 

 6. 

Evaluate the expression unit_3c_study_files/i0070000.jpg, for unit_3c_study_files/i0070001.jpg.
a.
5
b.
6
c.
7
d.
18
 

 7. 
To evaluate unit_3c_study_files/i0080000.jpg, which computation do you do first?
a.
4 ´ 9
b.
9 – 6
c.
4 ´ 6
d.
4 – 6
 

 8. 
Evaluate the expression unit_3c_study_files/i0090000.jpg, for unit_3c_study_files/i0090001.jpg.
a.
9
b.
5
c.
4
d.
3
 

 9. 
Which expression shows the number of students in each group when 15 students are put in n groups?
a.
15 ÷ n
b.
15n
c.
15 + n
d.
n ÷ 15
 

 10. 
A U.S. Representative's term lasts for 2 years. Unlike the President of the United States, there is no limit on how many terms a U.S. Representative can serve. Use 2n to find the number of years a U.S. Representative served if unit_3c_study_files/i0110000.jpg, where unit_3c_study_files/i0110001.jpg the number of terms served.
a.
2 years
b.
8 years
c.
10 years
d.
16 years
 

 11. 
What is the rule for the table?
In
1
2
3
4
n
Out
9
18
27
36
 
a.
9n
b.
8n
c.
n ÷ 9
d.
n ÷ 8
 

 12. 
What is the rule for the table?
In
12
24
42
54
n
Out
2
4
7
9
 
a.
6n
b.
n ÷ 10
c.
n ÷ 6
d.
10n
 

 13. 
Complete the table to find how much 16 gel pens cost, and to find the rule.
Gel Pens
4
8
12
16
n
Cost
2
4
6
  
a.
$8; n ÷ 2
b.
$8; 2n
c.
$4; 4n
d.
$4; n ÷ 4
 

 14. 
Mika knows there are 12 inches in 1 foot. Which rule shows how many inches there are in n feet?
Feet
1
2
3
4
n
Inches
12
24
36
  
a.
n ÷ 3
b.
12n
c.
n ÷ 12
d.
3n
 

 15. 
Complete the table to find how many miles a space shuttle, traveling in low Earth orbit, can go in 10 seconds. Then find the rule.
Seconds
2
3
6
7
10
n
Miles
10
15
30
35
  
a.
50 miles; n ÷ 5
c.
50 miles; 5n
b.
60 miles; 6n
d.
60 miles; n ÷ 6
 

 16. 
Solve the equation by testing these values for k: 4, 5, 6, and 7.
unit_3c_study_files/i0170000.jpg
a.
k = 7
b.
k = 6
c.
k = 5
d.
k = 4
 

 17. 
Solve the equation by testing these values for u: 5, 6, 7, and 8.
unit_3c_study_files/i0180000.jpg
a.
u = 8
b.
u = 7
c.
u = 6
d.
u = 5
 

 18. 
Via put some grapes into 2 baggies. Each baggie had 5 grapes. Solve the equation unit_3c_study_files/i0190000.jpg to find how many grapes Via had.
a.
x = 10
b.
x = 9
c.
x = 8
d.
x = 5
 

 19. 
Vo memorized a poem with the same number of lines in each of 3 stanzas. He memorized a total of 15 lines. Solve the equation unit_3c_study_files/i0200000.jpg to find how many lines were in each stanza.
a.
m = 18
b.
m = 6
c.
m = 5
d.
m = 4
 

 20. 
Which equation has a solution that is greater than the solution to 4n = 20?
a.
4n = 12
b.
4n = 8
c.
4n = 24
d.
4n = 16
 



 
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