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Question 207823: A shopping center is rectangular, with dimensions of 660 yards by 110 yards. What is its size in acres?
Click here to see answer by rfer(12654)

Question 207888: If a ball is thrown upwards at 40 feet per second from a rooftop 24 feet above the ground, then its height above the ground t seconds after it is thrown is given by h = - 16 t2 + 40 t + 24.
a. Rewrite the above formula with the polynomial on the right hand side factored completely.
b. Use the factored version of the formula to find h when t = 3.

Click here to see answer by vleith(2825)

Question 207887: A rectangular deck has an area of (x2 + 6x + 8) square feet. If its width is (x + 2) feet then:
a. Find its length in terms of ‘x’.
b. If x = 3, what will be the area, length and width in feet.

Click here to see answer by vleith(2825)

Question 207889: In a triangle, the height is 1 inch longer than twice its base. If the area of the triangle is 39 Sq inch, then how long is the base and what is its height?
Click here to see answer by Alan3354(30993)

Question 207913: Solve by factoring using the zero property factor.
2h^2-h-3=0
Click here to see answer by jim_thompson5910(28536)

Question 207891: Factor out the GCF in the following expression:
36 a3b5 – 27 a2b4 + 18 a2b9

Click here to see answer by ankor@dixie-net.com(15646)

Question 208038: While finding the amount of seed needed to plant his 3 square wheat fields, Hank observed that the side of one field was 1 kilometer longer than the side of the smallest field and that the side of the largest field was 3 kilometers longer than the side of the smallest field. If the total area of the 3 fields is 38 square kilometers, then what is the area of each field?
Click here to see answer by rapaljer(4667)

Question 208016: In a 3 hour examination of 350 questions, there are 50 math problems. If twice as much time should be allowed for each math problem as for each of the other questions, how many minutes should be spent on the math problems.
I used 300x+(50*2x)=180 giving me x=.45
The decimal in the answer is throwing me off. Is there a better way of solving?
Click here to see answer by Theo(3458)

Question 208037: A car is traveling on a road that is perpendicular to a railroad track. when the car is 30 meters from the crossing, the car's collision detector warns that there is a train 50 meters from the car and heading toward the same crossing. How far is the train from the crossing?
Click here to see answer by rapaljer(4667)

Question 208039: Henry invested $12,000 in a new restaurant. When the restaurant was sold two years later, he received $27,000. Find his average annual return by solving the equation 12,000 (1+r)^2=27000
Click here to see answer by rapaljer(4667)

Question 208017: Two angles are complementary if the sum of their measures is 90°. The measure of the first angle is 5° less than 4 times the second angle. Find the measure of the FIRST angle.
Click here to see answer by rapaljer(4667)

Question 208085: John sold 120 magazine subscriptions in (x + 2) days. If he sold at the same rate for another week, then how many magazines did he sell in the extra week?

Click here to see answer by ankor@dixie-net.com(15646)

Question 208084: Factor out the GCF in the following expression:
– 6 m5 + 3 m3n6

Click here to see answer by checkley77(12569)

Question 208124: A state college has 620 students. There are 20 more women than mane. How many women are there?
Click here to see answer by rfer(12654)

Question 208116: The sum of two numbers is 4 and their product is (- 32). Find the numbers.
Click here to see answer by checkley77(12569)

Question 208116: The sum of two numbers is 4 and their product is (- 32). Find the numbers.
Click here to see answer by rfer(12654)

Question 208170: A Michigan orchard made 20,488 lbs of taffy apples with approximately 1 lb of taffy mixture for each 73.3 pounds of apples. To the nearest tenth of a pound, how many pounds of apples and how many pounds of taffy were used?

Click here to see answer by rfer(12654)

Question 208169: A minor league baseball team plays 132 games in a season. If the team won 16 more than three times as many games as they lost, how many wins and losses did the team have?
Click here to see answer by rfer(12654)

Question 208171: At work one day, Erica Franz received 45 packages. Speedy Delivery delivered three times as many as ralph's Express, while Ralph's express delivered five more than Send Quick Package Service. How many packages did each service deliver to Erica?

Click here to see answer by rfer(12654)

Question 208421: a submarine descended to a depth of 479 ft and then rose 320 ft. how far below the surface was the submarine and how would you represent that with a signed number?
Click here to see answer by rfer(12654)

Question 208427: the price of a coat is representedd by (2x-5) dollars. Represent the amount a man paid for (5x-3) of these coats.
Click here to see answer by nerdybill(6955)

Question 208425: Sam is 10 years older than Jack. Twice Sam's age subtracted from 6 times Jack's age is 7 more then Jack's age. Find Jack and Sam's age.
Click here to see answer by algebrapro18(206)

Question 208424: Separate 65 into 2 parts such as that 3 times the larger will be 6 more than the smaller. (Hint: let x and 65-x represent your two numbers.)
Click here to see answer by Theo(3458)

Question 208422: (70a-40b)/-10
Click here to see answer by checkley77(12569)

Question 208764: respected sir,
plz help me to solve my maths difficulty..
1]In a certain class consisting of 36 students,some boys & some girls,exactly 1/3 of the boys & exactly 1/4 of the girls walk to school.what is the greatest possible number of students in this class who walk to school?
waiting for yur reply.
thank u.
regards.
Binita
Click here to see answer by DRichardson(63)

Question 208778: respected sir,
plz help me to solve this ratio problem..
1] In a certain company,the ratio of the manager to the number of production-line workers is 5 to 72.If 8 additional production-line workers were to be hired,the ratio of the number of mangers to the number of production-line workers would be 5 to 74.how many managers does the company have?
waiting for yur reply.
thank u.
regards.
binita.
Click here to see answer by stanbon(57285)

Question 208716: In a three-person, 100-meter race,Amy finishes 10 meters ahead of Brooke and 20 meters ahead of Carol. Assuming constant speeds for each runner, by how many meters did Brooke finish ahead of Carol?
Click here to see answer by ankor@dixie-net.com(15646)

Question 208712: Two pounds of pears and one pound of peaches cost $1.40. 3 pounds of pears and two pounds of peaches cost $2.40. How much is the combined cost of one pound of pears and one pound of peaches?
Click here to see answer by ankor@dixie-net.com(15646)

Question 209014: There are four 3-digit natural numbers, each of them equals the sum of the
cube of its digits, three of them are:
153=1+125+27
370=27+343+0
407=64+0+343
What is the 4th one?
Click here to see answer by Edwin McCravy(8893)

Question 208999: In a chess match, a win counts 1 point, a draw counts 1/2 point, and a loss counts 0 points. After 15 games, the winner was 4 points ahead of the loser. How many points did the loser have?
Click here to see answer by Theo(3458)

Question 209121: There are three houses and three companies. Each company has to run one wire to each house. The wires can not intersect but they can curve. Wires can't go through other houses to get to another house.
Click here to see answer by Alan3354(30993)

Question 209168: a. The speed of the sound in air is s, in ft/s, is given by the formula s = 1055 + 1.1t, where t is the temperature in degrees Farenheit. Solve the formula for t.
Click here to see answer by Alan3354(30993)

Question 209167: If 4 apples and 2 oranges equals $1 and 2 apples and 3 oranges equals $0.75, how much does each apple and each orange cost?
Click here to see answer by nyc_function(2733)

Question 209251: Find the cost per ounce of a sunscreen made from 100 oz. of a lotion that costs $2.50 per ounce and 50 oz. of a lotion that costs $4.00 per ounce
Click here to see answer by stanbon(57285)

Question 209255: Hamburger costs $1.50 per pound and soy costs $1.00 per pound. The school cafeteria uses 50 more pounds of soy than hamburger and spends $350 a week. How much soy does the school use?
Click here to see answer by RAY100(1637)

Question 209300: Find the LCD of y/4x,x/6y and convert into a rational expression with the LCD as the denominator
Click here to see answer by stanbon(57285)

Question 209297: The resistance of a wire varies directly with its length and inversely with the square of its diameter. If 100 feet of wire with diameter 0.01 inch has a resistance of 80 ohms, what is the resistance of 90 feet of the same type of wire if its diameter is 0.04 inch?
HELP!!! I dont know what to do!
Click here to see answer by stanbon(57285)

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