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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 382817: If I earned 1600 and I spend 224 and I invest 1000 I put the remaining in a savings what percent of my earnings did I put in a savings? Click here to see answer by rfer(12662)

 Question 382796: How to solve system of equations by graphing. Click here to see answer by Fombitz(13828)

 Question 382977: Suppose that A is the set of sophomores at your school and B is the set of students in discrete mathematics at your school. Express each of these sets in terms of A and B. a) the set of sophomores taking discrete mathematics in your school b) the set of sophomores at your school who are not taking discrete mathematics c) the set of students at your school who either are sophomores or are taking discrete mathematics d) the set of students at your school who either are not sophomores or are not taking discrete mathematics Click here to see answer by edjones(7569)

 Question 382997: The yearbook club had a meeting. The meeting had 24 people, which is three fourths of the club. How many people are in the club? Click here to see answer by guitarheroguy(26)

 Question 383121: Find the coordinates of the points that divide the line segment joining (4,5) and (10,14) into three equal parts. Thanks for your help Click here to see answer by Fombitz(13828)

 Question 383505: use long division to divide. x^6-1 / x-1 Click here to see answer by Fombitz(13828)

 Question 383565: What's the quotient of 3/2 and 9/20 plzz show the work so I knw how u got the answer Click here to see answer by Fombitz(13828)

 Question 383563: What's the product of 5/4 and -3/10 can u show work plz Click here to see answer by Fombitz(13828)

 Question 383613: Write the equation of the line tangent to circle x2 + y2 = 25 at the point (-4,3) A line is tangent to a circle if it is perpendicular to a line through the center of the circle at the point in which this line meets the circle Click here to see answer by CharlesG2(828)

 Question 383615: What is the following quotient in lowest terms: (-3/5) divided by (15/13) Click here to see answer by Fombitz(13828)

 Question 383783: the product of the page numbers on two facing pages of a book is 240. find the page numbers Click here to see answer by rfer(12662)

 Question 383784: the product of two consecutive odd integers is 483. find the integers Click here to see answer by Alan3354(30993)

 Question 383828: how do you write and solve an equation for 25 is two less than the square of a number? Click here to see answer by edjones(7569)

 Question 384085: Interest Formulas If you invest \$P, and you earn interest only on the amount you invested (the \$P), then ________________ interest is earned. If you invest \$P and you earn interest not only on the \$P, but also on the interest gained, then ______________ interest is earned. Let P = principal, r = annual nominal interest rate (in decimal form), t = time of the investment (in years), A = amount in the account after t years. THEN… Simple interest: A = _________________________________________ Compound interest: A = _____________________________________ Ideally, what do you want to happen to the value of n in the compound interest formula if the formula represented the amount of money you have in the bank? Click here to see answer by mananth(12270)
 Question 384085: Interest Formulas If you invest \$P, and you earn interest only on the amount you invested (the \$P), then ________________ interest is earned. If you invest \$P and you earn interest not only on the \$P, but also on the interest gained, then ______________ interest is earned. Let P = principal, r = annual nominal interest rate (in decimal form), t = time of the investment (in years), A = amount in the account after t years. THEN… Simple interest: A = _________________________________________ Compound interest: A = _____________________________________ Ideally, what do you want to happen to the value of n in the compound interest formula if the formula represented the amount of money you have in the bank? Click here to see answer by Theo(3464)

 Question 384122: solve for a: 4/a+2 - 6/a-2 = 6/a^2 - 4 Click here to see answer by ewatrrr(10682)

 Question 384119: Reduce to lowest terms: x^3 - 1 / x^2 - 1 Click here to see answer by ewatrrr(10682)

 Question 384372: **Logarithms are mainly used to solve exponential equations. **In words, the expression a b log represents ___________________________. **We can convert an equation in log form, y a b = log to an equivalent exponential form ______________. **The most frequently used bases for logarithms are ________ and ____________. **3 commonly used log properties: _____________, _______________, ______________ Click here to see answer by Theo(3464)

 Question 384566: i need help with geometry simalarity right trianglesand trigonometry If a/b=5/3 then 3a = ____. Click here to see answer by jim_thompson5910(28595)

 Question 383769: Rod has 40 coins, all dimes and quarters worth \$ 7.60. How many dimes and how many quarters does he have Click here to see answer by mtmorro(23)

 Question 384585: If one line has a slope of −3 and another has a slope of 2, which line is steeper? Why? Click here to see answer by rfadrogane(214)

 Question 384634: I forget the exponant rule. It says to simplfy to such. (x^9y^6)^1/3 Click here to see answer by mananth(12270)

 Question 384632: I am not sure what it would take to solve this one... is is substitution? -2x+3y=1 x-y=1 Click here to see answer by mananth(12270)

 Question 384631: I have having problems with quadratic equations. can someone help step by step? x^2+6x-1=5 Click here to see answer by mananth(12270)

 Question 384650: need help in knowing how to express the ration in simplest form 28 cents to 91 cents. would it be: 27:91 13:4 1:13 or 4:13 Thanks for your help :o) Click here to see answer by mananth(12270)

 Question 384628: 3x/x+2 + 5/x-2 I keep getting this type of question wrong. Click here to see answer by mananth(12270)

 Question 384591: A 50 meter by 120 meter park consists of a rectangular lawn surrounded by a path of uniform width. Find the dimensions of the lawn if its area is the same as the area of the path. Click here to see answer by edjones(7569)

 Question 384694: Could someone kindly help solve this algebra problem? Thank you!:) A red blood cell has a diameter of approximately 0.00075 centimeter. Suppose one of the arteries in your  body has a diameter of 0.0456 centimeter. How many red blood cells could fit across the artery? Click here to see answer by edjones(7569)

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