Critical Thinking/Math
145,758 results, page 70

Math
One of the "think outside the box" problems in my math work is really challenging me. I need to write and equation expressing: 8 cos theta + 15 sin theta as a single sinusoid I tried graphing to no avail and there is nothing in my textbook about turning an equation like that ... 
math
If a man drove 3.5 miles to a gas station and on the way home drove 2 times that +.7 miles,how many miles did he drive?? 3.5 + 2 times 3.5 + .7 = what Do the math. 17.5 omg ur so smart... 
Math
A math class has 25 students. There are 13 students who are only in the band, 4 students who are only on the swimming team, and 5 students who are in both groups. How many students are not in either group? I think it's 3 students? 
Math
Linda got a math test handed back to her and got a 96% on it. However she lost the test, not knowing what she got. If she knows that she scored a 43 on the test then how many 1 mark questions are there on the test? 
Math
e Math Test: grandmother buys grandson a plastic bat & ball for a $1.10. The bat cost a dollar more than the ball. How much did the ball cost? 
math
Hannah's grade on her last math test was 4 points more than Mark's grade. Write an expression for Hannah's grade, using m as a variable. Evaluate the expression if m=92. 
Math (Function differentiable)
Determine whether the function is differentiable at x=2 x^2+1 for x<(or equal to) 2 4x3 for x>2 I did the math for the limits of both equations and they both approach to 4. So that means they are differentiable right? 
Childhood Education
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking 
Math Statistics
The table below shows Rico’s grades during the third term in four subjects. Subject Units Grade Math 1.5 98 Science 2 97 English 1.5 95 A.P. 1 99 What was Rico’s average grade in the four subjects? 
math
Fractions and mixed numbers are often used in everyday life. Discuss a reallife example in which you would need to add, subtract, multiply, or divide fractions or mixed numbers, and show the math 
program planning
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A. Math and science B. Social studies and science C. Cooking and math D. Social studies and cooking 
math
In a recent Math Duel, my team began by graphing 51x+24+75. If our opponents graphed a line parallel to ours, they might have graphed A. 17x+16y=25 B. 17x+8y=50 C. 34x+8y+50 D. 34x+16y=50 
Math
There are 8 more girls in the math club. The club has a total of 44. How many are girls and how many are boys? 
Math
Jared can work 54 math problems in 1 hour. How many problems can he work in 10minutes? 
properties and mental math
use properties and mental math to find the value of (86 + 27) + 3 
Math  Discrete math
(1) For all integers y, there is an integer x so that x^3 + x = y. (2)For all integers x, x^3 + x is even Thank you for your help. 
Math
There are 28 students in math class. 22 of them passed the test. What percentage passed the test. 
chem repost for bobpursley
Posted by polkadot on Friday, April 8, 2011 at 8:46pm. Can someone please help me by explaining and correcting me? 1) A 0.057M solution of a weak acid has a pH of 4.93. Determine the ionization constant, Ka, of the acid. a) 2.1 x 10^4 b) 2.4 x 10^9 c) 4.1 x 10^8 d) 2.8 x 10... 
To Ms.Sue And All Teachers
I am new in this website. Please help me with my math homework. How do you subtract fractions? How do you subtract 7 and 2/5 AND 4 and 5/10? (7 and 2/5  4 and 5/10) How do you subtract 6/10 and 6/20? Thank you! Please visit the following site for a super good tutorial: http... 
Math (probability) repost for Christine
Math  Christine, Tuesday, October 16, 2007 at 9:13am The odds against Amy winning the tennis tournament are 5:2. Find the probability that Amy wins the tournament ? 
statistics
What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming these events are independent) If there are 72 math majors and 105 computer science majors? 
4th Grade Math: Help Is Needed ASAP
My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems. 1. 2/3+2/9= 2. 3/5+3/10= 3. 5/12+1/3= 4. Find the sum of 1/6 and 1/12 5. Add 1/4 to the answer in Exercise 4. 6. What is the sum of 1/8, 1/4, and 3/8? 7... 
math: counting techniques
Six problems (numbered 1 to 6) are set for a math test. A student can score 0, 1, 2, 3 points for each problem. Find the number of ways to score a total of 15 points for the six problems. 
Math
Okay. I have questions like "Walks ten meters in 3 seconds" . How do I find her walking rate. After that I have to find an equation to represent the distance she walks in t seconds. Please help me...Im very confused and terribe at math 
Math
For an experiement to test elastic collision, ball 2 was at rest and ball 1 was released from a certain height and distance and hit ball 2. A set of measurements were collected which was v1 and v2 prime for each ball. I need to calculate the kinetic energy before and after ... 
HCA331
To complete the following assignment, go to this week's Final Paper link in the left navigation. Final Project Given all of the information that you have learned about health care education, this assignment challenges you to convey that information to other health care ... 
3rd grade
math to endure the heat,firefighters wear protective gear that weighs about 40 pounds.If a suitedup firefighter weighs 220 pounds,how can you use mental math to find the firefighters weight without the gear? 
math
Posted by question on Wednesday, July 22, 2009 at 4:56pm. solve 5/8x + 1/16x=7/16+= the solution is x=___ Responses math  Mr. L, Wednesday, July 22, 2009 at 7:23pm 5/8x is the same as 10/16x That should help my final answer would be 7/27 do i have it right 
3 rd math
no i'm not try to cheat. i just want to understand how do you round the #132 to the nearest million . if 2 in million place should i round up or keep it same value. i just want to able to understand . on my kids math practic only . it's not an actual homework . 
To all students posting math questions
Please know that at least 3 of our frequently posting math tutors are away from their homes on trips. There are other very good tutors who are online, but less frequently. You'll need to be very patient. 
math
Use symbolic Math symbolic representation: 1. You observe that oen fox eats 100 rabbits each year. You have the idea that every increase of one int eh fox population will cause the rabbit population to decrease by 100. 
7th grade math pre algebra
I'm confused about this math question my teacher gave us today. Bowser's dog food is 40% meat. How much dog food would Bowser eat in order to get 11 kgs of meat? 
math
Mrs. rhombus has to make supply bags for a math lesson. She has 60 folders, 45 pairs of scissors, and 30 rulers. What is the greatest number of supply bags that Mrs. Rhombus can use to divide the school supplies into equal groups? 
Stats
You have many old textbooks in your apartment. You have 6 math books, 7 econ, and 4 accounting. Assume that each textbook is different than the other. A) What is the probability that the last book is one of the economic textbooks? B) What is the probability that none of the ... 
Math
Use the graph below to answer the following question. I'll post the link to the graph below. Find the slope. A. 2 B. 1/2 C. 2 D. 1/2 Honestly I'm horrible at Math so I can't really pick a answer can someone please help me? Please explain to me how to work this problem. 
Math
The Walters' backyard pool is rectangular in shape and is similar to the rectangle formed by their fenced backyard. The pool measures 10 ft long and 8 ft wide. If the length of the backyard is 35 ft long, what is the width of the backyard? Math  Henry, Monday, December 5, ... 
math
find the slope of the line through the given points (8,2) and (8,1) when i do the math I come up with 1/0 as the slope making that infinite. Our choices for the answer are: a)0 B) 1/16 c) 3/16 d) no slope would the answer be d since the slope is infinite? 
math
in a math contest of 20 problems. 5 hpoints given each correct answer. 25 points are deducted for each incorrect answer. if janelle answered 20 problems and scored 72 points. how many correct answers did she had? 
math/ chemistry
so I have this chemistry problem which involves math and basically I need to convert 62 g/mol into mol/L but I don't know how. like do you DIVIDE the g/mol by 1000 to convert g to L? and then how to you get the mol to become the numerator? 
Math
HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5 or 5&1/2 Tell what ... 
Math 213 Elementary Math
2. Let U = {x x is a female} A = {x x is a mathematician} B = {x x owns a pickup} C = {x x owns a dog} 
math
a student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? 
f math
please what is the answer to this f math question......1cos^2X=0 for 0°less dan equals X..then X less dan equals 270 
Physics
A sled weighing 60 N is pulled horizontally across snow so that the coefficient of kinetic friction between the sled and the snow is 0.100. A penguin weighing 70 N rides on the sled. If the coefficient of static friction between the penguin and the sled is 0.700, find the ... 
math (check answer)
You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Three students have a January birthday, and 32 do not. So, you conclude that about 8.6% of the students in your school have a January birthday. ... 
Computer Science
public class RandomPhoneNumber { public static void main(String[] args) { int num1=(int)(Math.random()*7); int num2=(int)(Math.random()*7); int num3=(int)(Math.random()*7); int set1=(int)(100+Math.random()*642); int set2=(int)(1000+Math.random()*8000); System.out.println("Your... 
Math  2nd try
Please show me how to set up and solve: You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range is reasonable for the function? math  ... 
math,help
What does it mean to factor an algebraic expression into prime factors? Prime factors are factors that cannot be further factored. Do you know what a interval is in math terms? i need the definition yeah so what do you mean it should be put in help not here in quetions caus ei... 
math
In a contest , 2 participants were asked about their age . To test the strength of their math , they are asked to add their ages together. One answer 44 and the other gives 1280. The first obtained from the parse age with one another , while the second can multiply both their ... 
DRWLS,MATH,ALGEBRA
Drawls, How did you get 2h. and then the 2a/h from.Can you help me understand it when you get a chance. Directions: Solve each literal equation for the indicated variable. A=1/2h(B+b) (For b) Area of a trapezoid For Further Reading math,algebra  drwls, Monday, December 18, ... 
math
How can I add a two digit number and two three digit numbers in my head. Any tricks anyone knows in connection with shortcuts to solving different math problems( such as addition, subtraction,multiplication, division, rounding, conversions, percents) in your head when you can... 
Math
I need some help please. I don't understand the math that we are doing. Please explains to me in detail how to do radical expressions and like how to simplify them and stuff. I don't get it and it would be much appreciated. here is one of the problems. Also my computer does ... 
math
Dr needs 500 needles priced at 2.60 per hundred. If he pays within 10 days, she receives a 2% discount, sales tax 5.5%. What amount would you pay with the discount? My math 2.60 x 500 needles = $13.00 $13.00 x 5.5% = 72cents 13.00 + .72 = $13.72 $13.72  2% = 27cents 13.72  .... 
Math
Kerry skates laps around the playgroung. The playground is 150 meters long and 50 meters wide. How many laps will it take her to skate 1 kilometer? I need els really badly and I av a math test tommorow I need to study perimeter and area.... I old appreciate ur help. Tnx😊 
Math
There was a surge in math club membership after the fun Halloween party. When the principal asked Mrs. Germain how many students were currently in the club, she replied, "Three times our number plus a third of our number plus a fourth of our number plus you and me is two ... 
math
It could be different. One is supposed to define symbols before one starts with a Let statement, as in Let B= a constant Let b= some other constant or let b=B I suspect it is a sloppy typographical error, so B+b= 2B or =2b in math is there a differenc in B and b for example if... 
Math consecutive intigers
A student opens a math book to two consecutive pages with a sum of 1640. What are the two pages? I would need one odd number and one even. 819 and 820 are as close as I can come. What am I missing? 
Math
Dear Readers, I am a 6th grader that recently took a math test. I got a question wrong, and I think it was because I don't know the definition to the question. Can you please tell me what an interval in mathematical terms is. Please give me something a 6th grader can ... 
Childhood Education
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking . I belive the C is the correct answer 
Chemistry
Complete the following table for aqueous solutions of caffeine, C8H10O2N4. a) molality b) mass percent solvent c) Ppm solute All we're given is Mole fraction solvent= .900. How do I solve for the other parts with only this?? It XH2O = 0.9, then Xcaffeine=0.1. Suppose we have 0... 
7th Grade Math
I am stumped about the order of the steps to follow on the right side of a 2step math equation that I have for homework tonight: 2(6d+3)=183(163d) Do I multiply 3 times 16 and 3 times 3d or do I isolate the minus/negative sign and multiply 3 times 16 and 3 times 3d? ... 
basic math
I am not sure the solvent in this problem, as far as what you do when lining this problem up. The math problem..... Add 150 and 93.17. I don't know if I should be placing 150 at the first decimal or the second. I know I would usually do 150.00 93.17 but the 2nd decimal is ... 
math
Good day to you. How can I approach this math problem. "To save for a child's education, the Petersens deposited $2500 into an account that pays 6% annual interest compounded daily. Find the amount of interest earned on this account over a 20year period". I try solving with ... 
math
mr. pursley, have you ever worked geo., trig. etcwith no calu.s with the heat on , when it had to be right?wheather you blew up your target or something else or the bld. collapsed or was built in the correct place? i'm not an answer grazer, but qam an answer seeker.I'm trying ... 
Math
I have 4 math problems that need to be solved by using factoring. I am unable to figure the following out. I have used the FOIL method but it seems not to be working out. I appreciate any help I can get. Thanks ^ exponet 3x^37x^2+2x x^22x+5 x^47x^3+2x14 8x^22x=3 3x^37x^2... 
Math
I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true or false. If the ... 
Math
Mr. customs is correcting the class's math homework on customary units. which of the following measurements is reasonable? A pencil is 12 feet long. The back porch is 12 inches wide. The 3rd hole on the golf court is 123 miles long. The distance from new York to California is ... 
calculus
v(t)= Ce^(k(square root(t)) Suppose that the dealer, who is 25 years old, decides to sell the card at time , sometime in the next 40 years: 0< or equal to t < or equal to 40. At that time , he’ll invest the money he gets for the sale of the card in a bank account that ... 
MATH
Suppose 10,000 is invested at 6 percent.how much additional money must be invested at 8 percent to produce a yield on the entire amount invested of 7.2 percent. ( Please show each and every steps of this math with the rough works) THANK YOU SO MUCH. 
statistics
In a group of 100 students, 60 are taking math and 12 are taking English, but no one is taking both. What is the probability that a randomly selected student from this group is taking either math or English? 
math
In my math book I got a problem that said explain the meaning of the range I said that you need to add the greatest number and the lowest number if that is not correct what is the meaning of the range. 
maps and scale drawings math MATH HELP help !!!!
the actual distance between two cities is 135 km. The map scale is 1 cm : 100 km find the map distance. A)13.5 cm B)1.35 cm C)0.135 cm D)1350 cm 
Math Inequalities
9/8x greater than or equal to 1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do math correctly.... 
5th grade math
My daughter must correct the problems that she has gotten wrong in math, and we are trying to help her. I can not remeber how to write decimals in exponential form, and I tried looking in her book. Can some one help me so that I can help my daughter. Thanks Here is the problem... 
math
the bar and graph shows the number of students by major in the college of arts and sciences. What is the ratio of history majors to the total number of students in the college? Math200 history300 english400 science150 other 175 
Math
Help help!! Trying to help son with math homework.. Please help Create a table for each set of values. Test each table for equivalent ratios to find which set of values describes the proportional relationship of the two quantities. 66 ounces of peanuts to 89.1 ounces of ... 
math
There are 30 books in a bookcase. The books in the case are either math, science ,or history books. Ten of the books are math books. There are 6 fewer science books than history books. How many science books are in the bookcase?????? 
Math
The mean of Susan's math and science scores is 74 points. The mean of her math and English scores is 83 points. How many more points did Susan score in English than in science? 
11th grade Algebra 2
At a college bookstore, Carla purchased a math textbook and a novel thjat cost a total of $54, not including tax. If the price if the math textbook, m, is $8 more than 3 times the price of the novel, n, write a system of linear equations that could be used to determine the ... 
math
describe general rule for which fraction that have decimal forms that terminate and which have decimals that repeat and list prime factorizations for each: 1/2 , 1/3, 1/4, 1/5,1/6,1/7,1/8,1/9,1/10,1/11,1/12 how do I do these problems? I searched Google under the key words "... 
math
summer graded 25 math papers in 30 minutes.larry graded 22 papers in 20 minutes.what is the difference in the number of papers they can grade in two hours? 
math homework
Distance Rate Time in Math if x=yz, find the value x given that y=2 and z=5 Given T=RV, find Rif T=4 and V=8 Given w=xyz find w if x=2,y=3 and z=6 If C=ab, find Cif a=0.65 and b=1.9 
Math
Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject? 
Math
Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject? 
statistics
suppose that 70% of all college students love math. in a random sample of 8 college students, let x be the number of students who love math.find p(x=6) 
Psychology QuestionDESPERATE FOR HELP!!!
People typically adjust to a group's social norms by: 1.paying attention to the negative consequences that result when someone violates one of those norms. 2.noticing the differences among group members' behaviors. 3.asking a group leader to explain why they think and behave ... 
SAT Math?
I'm working on a couple of SAT math programs for school, and I have trouble figuring some out. 1. Joe is 3 years younger than Kate. If n represents Nora's age now, what was Kevin's age 4 years ago, in terms of n? A. N + 7 B. N + 1 C. N  1 D. N  4 E. N  7 2. If (x + y)^2  (... 
Math
Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent) This is for my general ... 
Math
Yep, another math question! The slope of a line passing through H ( 2, 5) is 3/4, which ordered pair represents a point on the line? A: (6, 1) B:(2, 8) C: (5, 1) D:(1, 1) No graph was with the question btw. I tried making a coordinate plane myself and making lines to see ... 
Math
What is 5/8 + 4/7 1 ? I can't understand this math problem.... Please help me....  Problem: In a boys' school, 5/8 of the boys play football and 4/7 play rugby. If every boy plays at least one of the two games, find the fraction of the boys who play both I ... 
Re: Physics/Math
A single force acts on a 5.0 kg particlelike object in such a way that the position of the object as a function of time is given by x = 3.0t  4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to t = 2.0 s. For ... 
10th grade English
This is my personal reflective essay. Please fix any mistakes or awkward phrases ASAP My body and my mind became lighter than air around me, as I threw myself on a couch where my back enjoyed being at. Released from the monstrous term of school, I felt saintlike, as if I ... 
math
I'm not good at math! I need help with finding a decimal from a fraction. like 1/3, 13/15, 19/32 I can't figure out how to turn it into a decimal! Just divide the numerator by the denominator. Use long division or a pocket calculator. can u help mme because i get f,s all the ... 
Math  is this correct?
1. Estimate a 15% tip on a taxi ride that costs $23.25. I will first round the cost to the nearest dollar. $23.25 ≈ $23.00 I will now use mental math to find 10% of the cost. $23.00 x 0.1= 2.3 5% is 1/2 of 10%, so it would be $1.15. Finally, I will add the values to get ... 
Math
Lesson 8: Solving Inequalities Unit Test CE 2015 Algebra 1 Unit 4: Solving Inequalities i need answers im 9 lessons behind in math and my mom just had surgery and the house is a mess if anyone understands please help!!!! ): i just dont have time 
Math
I have a few math problems that I need some help with. I am somewhat confused on the one below. Nancy hears a report that the average price of gasoline is $2.82. She averages the prices of gasoline near her home. She finds the average price of gas to be $3.03. Why are the ... 
Math
A 6.4 ton military fighter must land on a flight strip. If the plane lands at a speed of 368 mph, and the coefficient of kinetic friction is 0.72 between the wheels and the ground. If the runway must be at least 150% as long as the shortest possible landing distance of the ... 
Statistics  can someone check me
Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. P(geo ... 
Math
You and a friend both take a math examination. You score a 98 out of 100 points and your friend scores 96 out of 100 points. Who scored better? Explain 
Math
Elliot finished studying at 4:45 p.m. He spent 30 minutes reading a social studies chapter. he spent 45 minutes on his math homework. At what time did Elliot begin studying?