# Questions on Word Problems: Evaluation, Substitution answered by real tutors!

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 Word Problems: Evaluation, Substitution Solvers Lessons Answers archive Quiz In Depth

 Question 499244: Hello, How to solve this problem? z - {2z -[3z -(4z - 5z) - 6z] -7z} - 8z Click here to see answer by deborabr(181)

 Question 499243: hello, Use the associative property of multiplication to write an equivalent expression: (cd)e Click here to see answer by Flannery(124)

 Question 499364: one number is 8 times a first number,a third number is 100 more than the first number. if the sum of the number is 440 find the numbers Click here to see answer by oberobic(2304)

 Question 499670: Hello, My problem is: Seven times what number is 1596? Click here to see answer by Earlsdon(6287)

 Question 499906: Hello, What can you conclude about the weight of someone who has consumed 4 drinks in a hour without reaching a blood alcohol level of 0.08%? Click here to see answer by Alan3354(30993)

 Question 500182: It cost a familly of seven a total of \$119 for general admission tickets to the San Diego Zoo. If adult tickets cost \$21 and children's tickets cost \$14, how many adult tickets were purchased? Click here to see answer by Maths68(1474)

 Question 500329: Evaluate 5x - 3y/ 7 for y =4 x=3 I put 5(3) - 3(4)/7 correct Click here to see answer by swillia50(1)

 Question 502549: A woman has 8 yards of fencing for her yard. What is the maximum rectangular area she can enclose? A. 3 square yards B. 9 square yards C. 4 square yards D. 6 square yards E. 7 square yards Click here to see answer by MathLover1(6634)

 Question 504009: tasha bought salads at \$2.75 each and cartons of milk at \$.80 each. the total cost was \$16.15. she bought 8 items, how many of each did she buy ? Click here to see answer by oberobic(2304)
 Question 504009: tasha bought salads at \$2.75 each and cartons of milk at \$.80 each. the total cost was \$16.15. she bought 8 items, how many of each did she buy ? Click here to see answer by josmiceli(9686)

 Question 504031: how would I write the following into an equation? five times the sum of a number and seven is thirty? Click here to see answer by oberobic(2304)
 Question 504031: how would I write the following into an equation? five times the sum of a number and seven is thirty? Click here to see answer by stanbon(57361)

 Question 504093: This one is stumping me.. I can't figure out how it comes out to be 16 and 32. Can someone show me the steps to get there? Thank you. Jack is twice as old as Lacy. In 3 years the sum of the ages will be 54. How old are they now? Click here to see answer by oberobic(2304)

 Question 505956: Tickets for a school play sell for \$8 for floor seats and \$6 for balcony seats. For one performance 72 tickets are sold, bringing in \$516. How many of each ticket are sold? Click here to see answer by Maths68(1474)

 Question 508087: jennifers boat use 5 gallons of gasoline in 4 hours. At this rate, how many gallons of gasoline will the boat use in 10 hours ? Click here to see answer by rfer(12662)

 Question 508108: what is the undefined slope that passes through (-1,3) Click here to see answer by stanbon(57361)

 Question 508297: Flying with the wind, an airplane can travel 1500 km. in 2.5 hours, but flying against the wind, the airplane requires 0.5 hour more to make the return trip. find the speed of the airplane in still air and the speed of the wind. what would be the 2 equations to solve this? Click here to see answer by Alan3354(30993)

 Question 508519: A linear equation, x = 5, is a horizontal line of a plane. true or false? Click here to see answer by swincher4391(726)
 Question 508519: A linear equation, x = 5, is a horizontal line of a plane. true or false? Click here to see answer by Alan3354(30993)

 Question 509142: if f(x)=x^2 + 3x then f(-2) =10............true or false? Click here to see answer by swincher4391(726)

 Question 509141: if f(x)=x2 + 3x then f(-2) =10............true or false? Click here to see answer by Alan3354(30993)

 Question 509166: on a plane, every line is the graph of a linear equation in two unknowns..... true or false? Click here to see answer by swincher4391(726)
 Question 509166: on a plane, every line is the graph of a linear equation in two unknowns..... true or false? Click here to see answer by Alan3354(30993)

 Question 509208: Find the slope (m) of a line that passes through the following points. (m = - 1/7) (4, 2), (-3, 1) Click here to see answer by josmiceli(9686)

 Question 509301: If a ball is hit upward at 80 ft per second, then its approximate height, in meters, t seconds later is given by h(t) = 80t − 16t2. When does the ball hit the ground? Click here to see answer by Alan3354(30993)

 Question 510931: This is for 4th grade Problem solving George earns \$30 plus tips each day. Write an expression to show his total daily pay. (Is the answer: 30 + n) If George received \$8 in tips yesterday, how much did he earn in all? Click here to see answer by scott8148(6628)

 Question 510970: Marissa has \$4.40 in quarters and dimes. If she has 5 more quarters than dimes, how many of each coin does she have? Click here to see answer by stanbon(57361)

 Question 513655: Ten cars can park in ten parking spaces.In how many ways can they park if only 1 car is allowed per space.Answers given: (a)10^10 (b)10,9,8,7,6,5,4,3,2 (c)2^10 (d)10 (e)none of these Click here to see answer by stanbon(57361)

 Question 514416: How long does it take a jet engine traveling 1.6 x 10^7 kilometer per second to travel 5.3 x 10^14 kilometers? If the circumference of a very small circle is 2.35 x 10^-12 meter, then what is the diameter of the circle? Click here to see answer by ankor@dixie-net.com(15656)

 Question 514984: For every 37 tickets she sold, Martina was given a free ticket for one of the children. If 175 children wanted to go, how many tickets did Martina have to sell? I need to have the right equation and answer for my teacher. I can't figure it out. Thanks in advance for your help Click here to see answer by ankor@dixie-net.com(15656)

 Question 516037: two coin banks contain only dimes and quarters. the total value of the coins in the first bank is 15 the second bank, there are 1 more dimes then in the first bank and half as many quarters. the total value of the coins in the second bank is 10.25 find the number of dimes in the first bank. Click here to see answer by ankor@dixie-net.com(15656)

 Question 517015: A ball is dropped from the top of a 576 ft. building. Its height h(t) at time t seconds is given by h(t)=-16t^2+576. Find the height of the ball after 2 seconds: I know this is 512 ft. The next part...Determine how long it takes the ball to hit the ground: I came up with 36 seconds but it was wrong and I can't figure it out. Click here to see answer by jessica43(140)

 Question 520221: Decide whether the pair of lines is perpendicular, parallel, or neither 4x + 2y = 4 2x - 46 = 6 Click here to see answer by solver91311(16897)

 Question 520222: Graph the inequality on a plane: 3x+4y <= 12 Click here to see answer by solver91311(16897)

 Question 520218: On three consecutive passes a football team gains 9 yards, looses 38 yards, and gains 41 yards. What number represents the total net yardage? Click here to see answer by solver91311(16897)

 Question 520219: Graph the equation using the slope and y intercept y=8/5x + 5 Click here to see answer by solver91311(16897)

 Question 523196: Tom sells shoes part time at a department store. He can earn either \$500 per month plus 4% commission of his total sales, or \$400 per month plus 5% commission on his total sales. What is the total price of the shoes Tom needs to sell to earn the same income from each pay scale? Which is the better offer? Click here to see answer by stanbon(57361)
 Question 523196: Tom sells shoes part time at a department store. He can earn either \$500 per month plus 4% commission of his total sales, or \$400 per month plus 5% commission on his total sales. What is the total price of the shoes Tom needs to sell to earn the same income from each pay scale? Which is the better offer? Click here to see answer by mananth(12270)

 Question 523986: An object is projected vertically upward from the top of a building with an initial velocity of 128 ft/sec. Its distance s(t) in feet above the ground after t seconds is given by the equation s(t) = −16t2 + 128t + 120. A.)Find maximum distance above the ground. B.)Find the height of the building. Click here to see answer by solver91311(16897)

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