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Question 1150274: Suppose that a market research firm is hired to estimate the percent
of adults living in a large city who have cell phones. 600 randomly selected
adult residents in this city are surveyed to determine whether they have cell
phones. Of the 600 people surveyed, 451 responded yes - they own cell phones.
Using a 90% confidence level, compute a confidence interval estimate for the true proportion of adults residents of this city who have cell phones and interpret
the confidence interval.
Click here to see answer by Boreal(15235)

Question 1152217: Find the length of one side of an equilateral triangle where each following side is 2x-7,x+y-9 and y+5

Click here to see answer by ikleyn(52778)

Question 1152216: Kate makes a donation to a charitable organisation on a monthly basis. Her monthly donation is directly proportional to her monthy savings. If she saves $900 and $1200 in January ano February respectively,her donation increases by $35 from January to February. Find the amount of money she donates to the charitable organisation in each of the two months.
Click here to see answer by Theo(13342)

Question 1152221: At a concert in Ferryland, Sarah sold two types of tickets, adult tickets & children’s tickets. In total they sold 29 tickets and collected $579.25. If each adult ticket was $25.25 and each children’s ticket was $12.50, how many of each did they sell?
Click here to see answer by Alan3354(69443)

Question 1152426: Gina can paint 7 fence panel in 5 hours, Lim can paint 6 fence panels in 4 hour.
They both work together and paint 17 panels, at the same rate how long does it take to paint those 17 fence panels
Click here to see answer by ankor@dixie-net.com(22740)

Question 1152752: The ratio of men to women at a class is 6 to 5. How many women students are there if there are 6600 total people in the class?
Click here to see answer by Cromlix(4381)

Question 1153213: A video store manager observes that the number of videos sold seems to vary inversely as the price per video. If the store sells 570 videos per week when the price per video is $17.40, how many does he expect to sell if he lowers the price to $13.10? Round your answer to two decimal places if necessary.
Click here to see answer by josmiceli(19441)

Question 1153227: Elisha makes some flaky pastry and some sweet pastry. She uses 216g of flour for the flaky pastry and she uses the same weight of flour for the flaky pastry as she does for the sweet pastry.
Work out the ratio of the weight of fat she uses in the flaky pastry to the weight of fat she uses in the sweet pastry?

Click here to see answer by greenestamps(13200)

Question 1153257: Do the ratios 2:4/5 and 3/4:2/10 form a proportion?

Click here to see answer by josgarithmetic(39617)

Question 1153257: Do the ratios 2:4/5 and 3/4:2/10 form a proportion?

Click here to see answer by ikleyn(52778)

Question 1153435: what is the division of 270 between three people in the ratio of 2:3:4?

Click here to see answer by MathLover1(20849)

Question 1153435: what is the division of 270 between three people in the ratio of 2:3:4?

Click here to see answer by ikleyn(52778)

Question 1153546: One way signs have a standard width of 90 cm. Measure the scale diagram
of the one way sign to determine which scale factor was used to draw it.
https://lh3.googleusercontent.com/rSJ0Pea18kyg8KTzDLB2gce4Zc2PfA1taTiTykCAvgSzBbV5C-Sk2ZUFWF3zcXzkOuhh2w=s170
Select one:
a. 10%
b. 5%
c. 1/5
d. 20
Click here to see answer by josgarithmetic(39617)

Question 1154145: Train a is traveling at an average rate of 39 mph train be is traveling at an average rate of 65 mph how many hours more will it take train A Than train B to travel 195 miles

Click here to see answer by josgarithmetic(39617)

Question 1154237: The number of greens varied directly as the square root of the number of reds and inversely as the number of whites squared. What happens to the numbers of greens if the number of reds is multiplied by 16 and the number of whites is doubled?
Click here to see answer by Edwin McCravy(20054)

Question 1154302: If you drive 126 miles on 10 1/2 gallon of gas, what is the simplified ratio of miles to gallon
Click here to see answer by MathLover1(20849)

Question 1154525: I started my road trip at 2:00 PM and my odometer reading was 25,250 miles. I stopped driving at 10:00 PM upon which my odometer reading was 25,855 miles. If I was driving in cruise control the entire time, what was my average speed, in miles per hour, for the trip?

Click here to see answer by josgarithmetic(39617)

Question 1155171: A tanker of gasoline is 60 liters full, then 3/4 of it had been used. How many liters full to add to 60 liters full?
60/3/4 = ×/1/4 = 20 liters
Is this correct?
Click here to see answer by mananth(16946)

Question 1155644: Given the function f(x) = −2x^2x + 5x − 1, and g(x) = 5x + 3 evaluate the following:
a. f(−2) b.f(3) + 7 c. g(x − 1)
Click here to see answer by Boreal(15235)

Question 1155781: A garden table and a bench cost $450 combined. the cost of the garden table is two times the cost of the bench what is the cost of the bench
Click here to see answer by josmiceli(19441)

Question 1156053: total birds counted : 146
tagged birds counted : 48
total birds tagged : 250
Use a proportion to estimate each population

Click here to see answer by ikleyn(52778)

Question 1156460: a b and c share 7560 naira so that a has 2 and a half times as much as c, and b has 3 and a half times as much as c. find their shares
Click here to see answer by mananth(16946)

Question 1157312: Abdul is standing by a flag pole in such a way that the end of the shadow lines are lined up perfectly Abdul is 1.75 m tall and cast a shadow that is 4 m long he is 10 and 12 m away from the flagpole how tall is the
Click here to see answer by mananth(16946)

Question 1158653: Mrs. De Guzman gave her class sandwiches and cupcakes in a ratio of 5:1. If the number of students in her class is between 18 and 30
, how many students received sandwiches if each student received either sandwich or cupcake but not both?
Click here to see answer by josmiceli(19441)

Question 1158826: here is a recipe for an apple pie:
500ml flour
200 mL margarine
500 g sliced apples
125 g sugar
Each pie serves 6 people. How much of each ingredient does Frank need to make the pie? Frank has to make the same pie for 10 people, how will he adjust the recipe? Recalculate the measurement so he has the right ratio answer
pls help asap

Click here to see answer by ikleyn(52778)

Question 1159078: Answer the question True or False.
In some experiments, an expert assigns subjective probabilities, which can be interpreted as his/her degree of belief in the outcome.
Click here to see answer by ikleyn(52778)

Question 1159041: The compression ratio compares the volume of a cylinder at BDC(bottom dead center) to the volume at TDC (top dead center). If the compression ratio is 10.2:1 and the volume is at BDC is 124 cm^3, what is the volume at TDC in cm^3 rounded to the 1 decimal point.
Click here to see answer by Alan3354(69443)

Question 1159450: If g:h = 4:3, evaluate 4g + h : 8g + h
Click here to see answer by josgarithmetic(39617)

Question 1159466: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by AnlytcPhil(1806)

Question 1159466: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by Edwin McCravy(20054)

Question 1159466: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by greenestamps(13200)

Question 1159509: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by ankor@dixie-net.com(22740)

Question 1159509: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by lalitmohan(2)

Question 1159509: find the value of m if
e/1 = f/2 = g/3 = (5e - 6f -2g)/m

Click here to see answer by greenestamps(13200)

Question 1159525: Solve for the ratio u:v if u^2 + 3uv - 10v^2 = 0
Click here to see answer by ikleyn(52778)

Question 1159525: Solve for the ratio u:v if u^2 + 3uv - 10v^2 = 0
Click here to see answer by MathTherapy(10552)

Question 1159639: Boyles Law states that at a constant temperature the pressure of a gas varies inversely as its volume. If a certain amount of gas is under pressure of 40 pounds per square inch and has a volume of 400 cubic inches, what will be the pressure if the volume is decreased to 250 cubic inches?
Click here to see answer by ikleyn(52778)

Question 1159734: The lengths of the sides of a triangle are in the ratio 3:4:6. The perimeter of the
triangle is 143 cm. What is the length of the longest side?
Click here to see answer by Boreal(15235)

Question 1159794: Which of the following is true about the graph of the function y = 2.5x? Select all that apply
The equation does NOT represent a proportional relationship.
A change of 5 units in x results in a change of 2 units in y.
The unit rate of the relationship is 2/5
The slope of the line is 2.5
A change of 2 units in x results in a change of 5 units in y.
Click here to see answer by Theo(13342)

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