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Question 83137This question is from textbook introductory algebra
: to pass a course with a b grade , a student must have an average of 80 points on five tests. the student's grades on the first four tests were 75, 83,86, and 78. what scores can the student receive on the fifth test to earn a b grade?This question is from textbook introductory algebra

Click here to see answer by josmiceli(3009)

Question 83141This question is from textbook introductory algebra
: a pastry chef created a 50- ounce suger solution that wae 34% sugar from a 20% sugar solution and a 40% sugar solution. how much of the 20% sugar solution and how much of the 40% sugar solution were used?This question is from textbook introductory algebra

Click here to see answer by josmiceli(3009)

Question 83136This question is from textbook introductory algebra
: computer software engineers are fond of saying that software takes at least twice as long to develop as they think it will. according to that saying, how many hours will it take to develop a software product that an engineer thanks can be finished in 50 h?This question is from textbook introductory algebra

Click here to see answer by tutorcecilia(2042)

Question 83193This question is from textbook introductory algebra
: Rowing with the current of a river, a rowing team can row 25 miles in the same amount of time it takes to row 15 miles against the current. The rate of the rowing team in calm water is 20 mph. Find the rate of the current.This question is from textbook introductory algebra

Click here to see answer by checkley75(3666)

Question 83191: A commercial jet can fly 550 mph on calm air. Traveling with the jet stream, the plane flew 2400 miles in the same amount of time it takes to fly 2000 miles against the jet stream. Find the rate of the jet stream.
Click here to see answer by checkley75(3666)

Question 83205: Apply the formulas for motion due to gravitational attraction.
#1 A diver in Acapulco leaps horizontally from a point 112 feet above the sea.
(a) How long does it take for the diver to reach the water?
(b) At what speed does the diver enter the water?

Click here to see answer by stanbon(26280)

Question 83234: Student Computer Services bought a computer for $3616. The computer depreciates at a rate of $20 per month. Formulate a model that can be used to determine the value, C(t), of the computer t months after purchase. Find the value of the computer after 2 months.
Click here to see answer by josmiceli(3009)

Question 83235: In 1820 the population of a midwest city was 20,000. By 1860 it had grown to 22,000. If it continues to grow at the same rate, what will the population be in 1892? Give your answer to the nearest whole number.
Click here to see answer by checkley75(3666)

Question 83237: The number G of gears a machine can make varies directly as the time T it operates. If it can make 3825 gears in 4 hours, how many gears can it make in 7 hours?
Click here to see answer by checkley75(3666)

Question 83244: A merchant has coffee worth $3 a pound that she wishes to mix with 6 pounds of coffee worth $8 a pound to get a mixture that can be sold for $4 a pound. How many pounds of the $3 coffee should be used?
Click here to see answer by Nate(3495)

Question 83243: Don runs a charity fruit sale, selling boxes of oranges for $11 and boxes of grapefruit for $10. If he sold a total of 762 boxes and took in $8125 in all, then how many boxes of oranges did he sell?
Click here to see answer by Nate(3495)

Question 83263: a room has a floor area of 520 square feet. one dimension is 6 feet more than the other. Find the dimensions of the room.
i know that the formula is a=lw would i do as i would a equation im not sure can you please help understand

thank you
jenzbears
Click here to see answer by Mona27(45)

Question 83239: The sum of two numbers is 60. The second number is three times as large as the first number. What are the numbers?
Click here to see answer by Mona27(45)

Question 83124This question is from textbook Enementary and Intremediate Algebra
: page 140 problem 34
Cost of Road Service Ricks Automotive charges $50.00 plus $15.00 for each (15 min.)unit of time when making a road call. Twin City Repair charges $70.00 plus $10.00 for each unit of time. Under what circumstances would it be more economical for a motorist to call Ricks?This question is from textbook Enementary and Intremediate Algebra

Click here to see answer by ptaylor(1578)

Question 83240: From a point on a river, two boats are driven in opposite directions, one at 10 miles per hour and the other at 8 miles per hour. In how many hours will they be 54 miles apart?
Click here to see answer by ptaylor(1578)

Question 83276This question is from textbook introductory algebra
: an house insurance policy coust $275. for every $2000 of coverage. Find the cost for $25,000 worth of coverage.This question is from textbook introductory algebra

Click here to see answer by stanbon(26280)

Question 83319This question is from textbook introductory algebra
: Sam can mow the lawn in 20 minutes. Bob can mow the lawn in 30 minutes. if they work together, how long will it take to completely mow the lawn?This question is from textbook introductory algebra

Click here to see answer by vertciel(183)

Question 83293: The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with diameter 2 inches costs $48.00, how much will a 8 foot length with diameter 4 inches cost?
Click here to see answer by vertciel(183)

Question 83274This question is from textbook introductory algebra
: Jim rode a distance o f 12 miles out into the country on a bike and returned on foot. his rate on the bike was 4 times his rate by foot. He spent 5 hours on the entire trip. Find his rate of walking.This question is from textbook introductory algebra

Click here to see answer by vertciel(183)

Question 83272This question is from textbook introductory algebra
: sam can mow the lawn in 20 min. bob can mow the lawn in 30 min. if they work together, how long will it take to completely mow the lawn.This question is from textbook introductory algebra

Click here to see answer by Kalmetam(42)

Question 83366: Using logrithms as required to perform the following operations.

(274,000) 2/5
Click here to see answer by stanbon(26280)

Question 83369: Three consecutive even integers are such that the square of the third is 76 more than the square of the second. Find the three integers.

Click here to see answer by jmichau3(2)

Question 83371: A famer is trying to decide what to do with his livestock on his farm. He is thinking that he should sell 75 of his ducks, and this would give him enough food to feed the remaining ducks for 20 more days than what he currently has. His friend suggests that he buys 100 more ducks, however this will mean that the food he has for the ducks will last 15 days less than it does now.
How many ducks does he have and how many days does the food last?
Click here to see answer by stanbon(26280)

Question 83273This question is from textbook introductory algebra
: Two printing presses can complete a job in 2 hours. if one requires 6 hours to do the job alone, how many hours would the second press need to conplete the job alone?This question is from textbook introductory algebra

Click here to see answer by checkley75(3666)

Question 83238: The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with a diameter 2 inches costs $48.00, how much will a 8 foot length with a diameter of 4 inches cost?
Click here to see answer by ankor@dixie-net.com(6693)

Question 83368: George Lucas pioneered the use of digital movie cameras with the most recent Star Wars film. Assume that Lucas's camera has a swappable 80 GB hard drive (remember: 1 GB = 1024 MB, 1 MB = 1024 KB, 1 KB = 1024 Bytes, and 1 Byte = 8 bits), that it records each pixel in x-bit color, that there are 26 frames recorded per second, and that each frame is recorded in 1600x1200 resolution.
Create a polynomial function that gives the number of minutes of video that can be recorded before swapping in a new hard drive, as a function of x (the number of bits used to encode the color of each pixel)
Evaluate this function for x = 32 (32-bit true color)
Click here to see answer by josmiceli(3009)

Question 83380: Sprint PCS offers a 500 anytime minutes for $40 per month with additional minutes available for $0.40 per minute. Write an equation representing the monthly cost (c) in dollars in terms of the number of additional minutes (m) used. (ignore taxes and fees)
Click here to see answer by uma(370)

Question 83461This question is from textbook

: In a class of 62 students, the number of females is one less than twice the number of males. How many females and how many males are there in the class?This question is from textbook

Click here to see answer by checkley75(3666)

Question 83462This question is from textbook

: If one-half of the complement of an angle plus three-fourths of the summplement of the angle equals 110 degrees, find the measure of the angle.This question is from textbook

Click here to see answer by Earlsdon(4900)

Question 83463This question is from textbook

: Sum of the present ages of Angie and her moether is 64 years. In eight years Angie will be three-fifths as old as her moether at that time. Find the present ages of Angie and her mother.This question is from textbook

Click here to see answer by ankor@dixie-net.com(6693)

Question 83233: The function H described by H(x)=2.75+71.48 can be used to estimate the height, in centimeters, of a woman whose humerus is x cm long. Estimate the height of a woman whose humerus is 34.4 cm long.
Click here to see answer by ankor@dixie-net.com(6693)

Question 83687: Solve by using the quadratic formula.
3x^2 = 11x + 4
I got 1/3, -4
Click here to see answer by josmiceli(3009)

Question 83679: A rectangular garden is to be surrounded by a walkway of constant width. The garden's dimensions are 30 ft by 40 ft. The total area, garden plus walkway, is to be 1800 ft^2. What must be the width of the walkway to the nearest thousandth?
Click here to see answer by ankor@dixie-net.com(6693)

Question 83686: The height h in feet of an object after t seconds is given by the function
h = –16t^2 + 70t + 5.
How long will it take the object to hit the ground? Round your answer to the nearest thousandth.

Click here to see answer by stanbon(26280)

Question 83760: A baker can decorate the day's cookie supply four times as fast as his new assistant. If they decorate all the cookies working together in 20 minutes, how long would it take for each of them to decorate the cookies working individually?
Click here to see answer by ankor@dixie-net.com(6693)

Question 83759: A painter can finish painting a house in 3 hours. Her assistant takes 5 hours to finish the same job. How long would it take for them to complete the job if they were working together?
Click here to see answer by checkley75(3666)

Question 83763: A chemist needs 100 milliliters of a 63% solution but has only 55% and 95% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Click here to see answer by stanbon(26280)

Question 83758: Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 13 miles with the wind, and in the same amount of time runs 5 miles against the wind. What is the rate of the wind?
Click here to see answer by ankor@dixie-net.com(6693)

Question 83765: The length of a rectangular storage room is 6 feet longer than it's width. What are the dimensions of the room if the area of the room is 72 square feet?
Click here to see answer by ptaylor(1578)

Question 84058: mark reads at an average of 30 pages per hour, while mindy reads an average of 40 pages per hour. if mark starts reading a novel at 4:30 pm and mindy starts reading the same novel 5:20 pm, what time will they be reading on the same page?
Click here to see answer by Edwin McCravy(2922)

Question 84064This question is from textbook introductory algebra
: The infield of a softball diamond is a square. The difference betweensuccessive bases is 60 ft. The pitcher's mound is diagonal between homeplate and second base at a distance of 46 ft. ffrom home plate. Is the pitcher's mound more or less than halfway between home plate and second base?This question is from textbook introductory algebra

Click here to see answer by stanbon(26280)

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