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Question 1000542: Jimmy and his family took a three-day trip. They drove 198 miles on the first day,150 miles on the second day, and 210 miles the third day. IF the entire trip took 9 hours what was the average driving speed?
A- 55 mph
B-62 mph
C-66 mph
D- 70 mph
Click here to see answer by rfer(16322)

Question 1000650: Yolanda and Yoko ran in a 100-yd dash. When Yolanda crossed the finish line, Yoko was 10 yards behind her. The girls then repeated the race, with Yolanda starting 10 yd behind the starting line. If each girl ran at the same rate as before, who won the race? By how many yards?
Click here to see answer by Theo(13342)

Question 1000965: Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. What is a valid proportion?
Click here to see answer by fractalier(6550)

Question 1001290: it tom covered the first 200 miles of a trip going 50mph, and the last 100 miles going 40mph, what was the average speed?
Click here to see answer by addingup(3677)

Question 1001296: It took a plane 2 hours to make a trip with the head wind and 1.5 hours to get back with the tail wind. If the speed of the wind was 30mph, how far apart are the two cities?
Click here to see answer by Alan3354(69443)

Question 1001294: It took a boat 2 hours to rich town A going upstream. The way back was one hour and 20 minutes. What is the speed of the boat in still water if the speed of the stream is 3mph?
Click here to see answer by Alan3354(69443)

Question 1001604: A mechanic needs a radiator to have 40% antifreeze solutions. the radiator currently is filled with 4 gallons of 25%antifreeze solution. How much antifreeze mixture should be drained from the car if the mechanic replaces it with pure antifreeze.
Drain_____ gallons from the radiator(if needed answer to 3 decimal places)
Click here to see answer by addingup(3677)

Question 1001614: A combined total of $20,000 is invested in two bonds that pay 2% and 8% simple interest. The annual interest is $1,180.00. How much is invested in each bond?
The amount invested at 2% is $_____
The amount invested at 8% is $_____
Click here to see answer by fractalier(6550)

Question 1001613: A tugboat goes 224 miles upstream in 16 hours. The return trip downstream takes 8 hours. Find the speed of the tugboat without a current and the speed of the current.
The speed of the tugboat without a current is__________miles/hour. (If needed, round to 2 decimal places)
The speed of the current is________miles/hour. (If needed, round to 2 decimal places)

Click here to see answer by Boreal(15235)

Question 1001612: Roscoe must play 27 commercials during his 1-hr radio show. Each commercial is either thirty seconds or sixty seconds long. If the total commercial time during that hour is 17 minutes, how many commercials of each type does Roscoe play?
Round answers to the nearest whole number.
30 second commercials_____
60 Second Commercials______
Click here to see answer by macston(5194)

Question 1001646: A chemist has 30% and 60% solutions of acid available. How many liters of each solution should be mixed to obtain 52.5 liters of 38% acid solution?
Click here to see answer by josgarithmetic(39616)

Question 1001644: The Downtown Community Barbecue served 238 dinners. A child�s plate cost $3.10 and an adult�s plate cost $8.10. A total of $1,297.80 was collected. How many of each type of plate was served?
Round answers to the nearest whole person.

Click here to see answer by rfer(16322)

Question 1001609: The Nutty Professor sells cashews for $6.50 per pound and Brazil nuts for $5.20 per pound. How much of each type should be used to make a 30 pound mixture that sells for $5.89 per pound?
Round answers to the nearest pound
____ pounds of cashews
____ pounds of brazil nuts
Click here to see answer by josgarithmetic(39616)

Question 1001740: x:1,2,3,4,5
y:3.2 , 12.8 , 28.8 , 51.2 , 80.0
What is the relationship between x and y?
a. y is directly proportional to x
b. y is inversely proportional to x
c. y is proportional to x^2
d. y is independent of x
Thanks.
Please explain!!!!!!!!
Click here to see answer by fractalier(6550)

Question 1001991: Y is inversely proportional to x and y = 4 when x = 1/2 find x when y = 10
Click here to see answer by ikleyn(52776)

Question 1001990: Y is inversely proportional x and y = 4 when x = 1/2 find x when y = 10
Click here to see answer by ikleyn(52776)

Question 1002338: Target: given two points write the equation of the line in point slope form
(-10,3) and (-2,-5)
Click here to see answer by MathLover1(20849)

Question 1002519: A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution with a 39% acid concentration?

Click here to see answer by stanbon(75887)

Question 1002528: Roscoe must play 24 commercials during his 1-hr radio show. Each commercial is either thirty seconds or sixty seconds long. If the total commercial time during that hour is 16 minutes, how many commercials of each type does Roscoe play?
Click here to see answer by mananth(16946)

Question 1002557: Alvin paddled for 5 hours with a 5 km/hour current to reach a campsite. The return trip against the same current took 10 hours. Find the speed of Alvin�s canoe without a current.
Click here to see answer by lwsshak3(11628)

Question 1002556: An airplane flies 5670 miles into the wind for 18 hours. The return trip takes 14 hours. Find the speed of the airplane without a wind and the speed of the wind.
Click here to see answer by josgarithmetic(39616)

Question 1002715: Please help me solve this problem into ax+by=c form which is a line passing throught the point (2,4) with slope:7
Click here to see answer by person24(13)

Question 1002715: Please help me solve this problem into ax+by=c form which is a line passing throught the point (2,4) with slope:7
Click here to see answer by MathLover1(20849)

Question 1002715: Please help me solve this problem into ax+by=c form which is a line passing throught the point (2,4) with slope:7
Click here to see answer by lwsshak3(11628)

Question 1002970: A "Sparky" is a new unit of measure for angles invented by students at Arizona State University. An angle corresponding to one full rotation around a circle measures exactly 170 Sparkies.
Convert 66 Sparkies to radians. Enter an exact value.
Previous answer I received was wrong. Please help. thanks all
Click here to see answer by Alan3354(69443)

Question 1003501: 2a+4=8
Click here to see answer by fractalier(6550)

Question 1004088: 2 is to 55 as 6 is to ?
Click here to see answer by stanbon(75887)

Question 1004196: Describe the graph of the Celsius- Fahrenheit relationship

Click here to see answer by Boreal(15235)

Question 1004355: Mara can type 1305 words in 3/4 hour and 45 minutes. How many words per minute can she type
Click here to see answer by fractalier(6550)

Question 1004488: This year Monica is 12 years old, and her little sister Patrice is 6 years old. Is Monica's age proportional to Patrice's age? Explain your reasoning using a table of values
Click here to see answer by josgarithmetic(39616)

Question 1004481: Find three objects that are close to a golden rectangle. Make a table to display the dimensions and the ratio found in each object. NEED HELP ASAP DUE TOMORROW!
Click here to see answer by fractalier(6550)

Question 1004879: Sue and New are having a party for the class. Sue brought in 38 soda cans for 14.06 dollars and New brought in 32 soda cans for 11.20. Who got the better price per soda can?
Click here to see answer by josmiceli(19441)

Question 1005239: If r varies inversely as t, and r=132 when t=4, find r when t=32.
Click here to see answer by Cromlix(4381)

Question 1005238: m varies directly as n. If n= 2/3, then m= 1/4.
Click here to see answer by Cromlix(4381)

Question 1005409: If the time (T) it takes to plant rice in an acre varies inversely as the number of farm workers (W). If 18 workers can plant rice in a certain number of acres in 3 days, how long will it take 12 workers to plant rice in the same number of acres?
Click here to see answer by josgarithmetic(39616)

Question 1005419: Express the following as an equation in which k represents the constant of proportionality: At a constant voltage, the electric current (l) varies inversely as the resistance (R).
Click here to see answer by ikleyn(52776)

Question 1005717: If a 9-foot tall adult elephant casts an 18-foot shadow, how long is the shadow of the 6-foot zookeeper? Use a proportion to set up and solve an equation. Round your answer to the nearest tenth of a foot if necessary.

Click here to see answer by fractalier(6550)

Question 1006176: Physics: I collected some data from Pendulum experiment and I used excel to graph these data in scatter plot and I think the period is proportional to the length.
What is the most appropriate linear relation for this graph? e.g. ,
Length(m)|Period(T)Sec|
0.30 |1.254 |
0.28 |1.232 |
0.26 |1.204 |
0.24 |1.160 |
0.22 |1.106 |
0.20 |1.044 |
0.18 |1.010 |
0.16 |1.006 |
0.14 |1.004 |
0.12 |0.916 |
0.10 |0.820 |
---------------
Click here to see answer by jim_thompson5910(35256)

Question 1006269: Solve the system by substitution. Enter you answer as an ordered pair, or type none or infinite.
y=2x+3
y=4x-1
Click here to see answer by rothauserc(4718)

Question 1006291: Solve the system by elimination. Enter you answer as an ordered pair, or type none or infinite.
x+y=-3
x-y=1
Click here to see answer by Boreal(15235)

Question 1006293: Solve the system by elimination. Enter you answer as an ordered pair, or type none or infinite.
-5x+3y=6
x-y=4
Click here to see answer by Alan3354(69443)

Question 1006294: Solve the system by elimination. Enter you answer as an ordered pair, or type none or infinite.
-5x+3y=6
x-y=4
(I think i already posted this one but idk)
Click here to see answer by sofiyac(983)

Question 1006299: Solve the system by elimination. Enter your answer as an ordered pair or type none or infinite.
( 4x-7y=10
( 3x+2y=-7

Click here to see answer by josgarithmetic(39616)

Question 1006324: Solve the system by elimination. Enter your answer as an ordered pair or type none or infinite.
( 4x-7y=10
( 3x+2y=-7
please help
Click here to see answer by josgarithmetic(39616)

Question 1006333: A jar contains nickles and pennies. If there are 56 coins in all and the total value is $1.52, How many nickles are in the jar?
Click here to see answer by ikleyn(52776)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265