# suppose a map is scaled so that a half inch represents 25 miles. how many inches of the map represents 87 1/2 miles?

35,906 questions, page 124
1. ## math

d=1.3times square root of h how high(to the nearest foot) would a platform have to be to see a distance of 15.5 miles?

asked by lisa on December 14, 2008
2. ## math

How many minutes are needed to make a 30 mile trip at an average speed of 20 miles per hour?

asked by Jas on April 2, 2008
3. ## math

A bicycle trip starts at 2:00 p.m. and ends at 5:45 p.m. If the cyclist travelled 86.3 miles, what was his/her average velocity?

asked by qwenie on April 28, 2016
4. ## MATH

How to solve for time? total of 800 miles, driving an average speed of 55 mph?

asked by TROY on March 1, 2009
5. ## math

A car travels at a constant speed of 56 miles per hour. How far will it travel in 45 minutes and 45 seconds?

asked by Anonymous on February 8, 2017
6. ## math

a car travelved a distance of 195 miles in 3 hours 15 minutes what is the unit rate

asked by jane on April 19, 2014
7. ## Algebra

Im to write a function,that showsthe total cost of b(x) to rent a car driven (x)miles

asked by Jeff on January 21, 2016
8. ## math

an airplane travels 750 miles in 1 hour and 45 minutes. what is the average velocity of the plane?

asked by ricky on April 13, 2016
9. ## chemistry

The escape velocity from earth is 2.5 x10^4 miles per hour. What is this speed in m/s? (1 mile 1609 m)

asked by Nancy on April 14, 2013
10. ## math

I'm wondering if someone could check my work please? I have a table: Distance driven in miles Total Cost 0

asked by Carly on October 14, 2017
11. ## Chemistry

If I average driving 60.0 miles/hour when traveling (including stops and sleeping) how far can I get in 3.5 days?

asked by Emmy on August 17, 2009
12. ## Chemistry

If your car gets 28 miles to the gallon, how many liters of gasoline are necessary to travel 112km? I need the answers so badly. Thank you very much.

asked by Chen on July 14, 2015
13. ## math

Zaid will travel from Boston to Washington, D.C. If the trip is 600 miles, about how fast will he have to go to get there in 10 1/2 hours?

asked by Anonymous on May 20, 2013

In recent years, Juresic Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Bus Acquired Cost

asked by vivian on November 6, 2010
15. ## math

In recent years, Juresic Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Bus Acquired Cost

asked by vivian on November 6, 2010

A crowbar lever , with a 3 inch long nail remover connected to a 20inch handle. If you push down on the handle end with a force of 40 N, what force is available to remove a nail? HINT: a Crowbar isnt all that different from a seesaw, except the pivot is

asked by Anonymous on December 13, 2012
17. ## astronomy

Compare the light gathering power of a telescope with a 10-centimeter(about 4-inch) diameter mirror to that of the human eye. (Take a diameter of the pupil of the eye to be about 5 millimeters) Wouldn't the power be related to the AREA of the optical

asked by Dhawal on April 17, 2007
18. ## Physics

A crowbar lever , with a 3 inch long nail remover connected to a 20inch handle. If you push down on the handle end with a force of 40 N, what force is available to remove a nail? HINT: a Crowbar isnt all that different from a seesaw, except the pivot is

asked by Anonymous on December 13, 2012

A crowbar lever , with a 3 inch long nail remover connected to a 20inch handle. If you push down on the handle end with a force of 40 N, what force is available to remove a nail? HINT: a Crowbar isnt all that different from a seesaw, except the pivot is

asked by Anonymous on December 17, 2012
20. ## Math College 115

According to a 2010 Kaiser Family Foundation report, during 2009 spent almost every waking hour outside of school using electronic devices such as iPhones, computers, or televisions. Those aged 8 to 18 spent an average seven and a half hours a day in 2009

asked by Diora on August 28, 2016
21. ## Math

2.You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature when it is not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking temperature.

asked by Renee on May 22, 2008
22. ## physical geography

How many time zones extend across Russia, from Kaliningrad to the Bering Strait? What is the central meridian for: a-Pacific standard time (PST)? b-Eastern Standard time (EST)? c-The irregular time zone that includes India? d-The time zone that includes

asked by mike on January 27, 2007
23. ## Math

Carlos baked a dozen cupcakes for the village fete.Half the cakes had pink icing and half had blue icing. Two of the cakes with blue icing and 3 cakes that had pink icing had a cherry on top. The rest of the pink cakes and 1 of the blue cakes had chocolate

asked by Demian on July 27, 2017
24. ## Chemistry

Suppose you had a mixture consisting of 20.0 g of compound A and 20.0 g of compound B dissolved in 100.0 mL of water at 95 degrees C. Suppose further that only 1.00 g of A are soluble in 100.0 mL of water at 5 degrees C but 15.0 g of B are soluble in 100.0

asked by Lila on September 16, 2010
25. ## Math

For small paving jobs, a contractor uses a roller pushed by a worker. A roller pushed by a worker (radius=8 in; length=30 in.) To the nearest square inch, what is the area of pavement with which the surface of the roller will come into contact in one

asked by Tehila on April 22, 2010
26. ## math

Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs \$29 per cubic yard. What will the material cost to

asked by Jo on May 10, 2011
27. ## math

Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs \$29 per cubic yard. What will the material cost to

asked by Jo on May 10, 2011
28. ## Math

You use a scale of 1 inch equals 280 feet to build a model of the great pyramid of guys that the width of the base of the pyramid is 756 feet what is the width of your model

asked by Anna on January 14, 2019
29. ## Algebra

Select the answer choice that most accurately evaluates whose equation is correct. Tania is partially correct. The amount of money Thu makes, y, is equal to the product of the number of jars he sells and 12, but she is correct that the booth fee is not a

asked by Mai on January 29, 2018
30. ## math: algebra

I need help checking my answer. I wasn't sure if 8 and 8 were both side lenegth's or if 22 is the slant height but I think it is got kind of confused there also wasn't sure how I was suppose to solve it but I sloved the problem how I though it was suppose

asked by meep on March 5, 2015
31. ## Statistics

Can someone help with these questions. I did majority of the work. but some i need help with. Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 13.26 shows the results of a study

asked by Davina on May 5, 2016
32. ## Math

A no. Plus two-third of itself plus one half of itself plus one-seventh of itself equals 97.find the no. Ans is42

asked by Simran kaur on November 4, 2012
33. ## Algebra

I had to factor 5x^3-10x^2+43x-6. I got 5x(x^2+-2x)+3(x-2). My teacher said this was half right. What did I do wrong then? Thank you!!

asked by Amelie on September 22, 2009
34. ## physics

Who does more work if your friends pushes a something four times further than you with half the force?

asked by Joanna on October 1, 2009
35. ## chemistry

why half cell reactions are given in reduction reations by IUPAC?

36. ## math

Subtract six and one-half minus four and seven-tenths. Justify your steps.

asked by cha on May 7, 2012
37. ## physics

a satelitee breaks in half while in circular orbit about the earth

asked by michelle on October 21, 2010
38. ## Chemistry

The half life for a first order reaction is know to be 4.5 h. How long will it take for 85% to be decomposed, in h?

asked by Paige on December 7, 2011
39. ## chemistry

how many half-lives of radon-222 have passed in 11.46 days?

asked by Jerry on May 23, 2011
40. ## ALGEBRA

SOLVE FOR THE VARIABLE 9/2m - 6 = -3 1/2 + 4m nine halves m minus 6 = negative 3 and a half + 4m thank you

asked by JUDE on January 6, 2016
41. ## SOCIAL STUDIES

WHAT 2 AQUIFERS PROVIDE THE WATER SUPPLY TO HALF THE PEOPLE IN NJ

asked by JAKE on October 31, 2010
42. ## Chem

What percentage of sodium-24 with a half life of 15.0 hr would remain after 60hours?

asked by Sarah on April 29, 2010
43. ## chem

How long does it take for 10.0 g of a radioactive isotope to decay to 1.25 g if its half-life is 17.0 d?

asked by bekah on September 19, 2014
44. ## algebra

solve a number is one half of another .find the numbers if their difference is 17.

asked by kattie on January 3, 2011
45. ## math

I am less than 100. The sum of my didgits is 4. Half of me is an odd number.

asked by jack on March 28, 2011
46. ## trig

Use a half-angle formula to find the exact value of cos 5ð/12

asked by Steve on December 16, 2009
47. ## science

after six half-lives what percentage of a radioactive sample will remain? a) 0%-1% b) 1%-3% c) 3%-6% d) 6%-10%

asked by victoria on December 9, 2013
48. ## Algebra 1

One third the sum of two numbers is 10 and half the difference is 14. What is the larger number?

asked by Dion on April 5, 2016
49. ## Social Studies

This Canadian landform covers about half of the country. Need help? confused.

asked by Sofia on June 14, 2015
50. ## Chemistry

need help to balance half reaction in basic solution IO3 to I2

asked by Shana on July 27, 2013
51. ## math

If it says write the equation, five less than half a number is forty would the answer be 1/2n-5=40

asked by Jenn on January 7, 2016
52. ## Maths

half of the sum of two number is 7,while one third of their product is 16,find the numbers

asked by Eze GDSS on June 1, 2016
53. ## College Calculus

What is the integral of cos^6x? I tried half angle identities but it didn't really help...

asked by Matt on February 18, 2008

if 8 ciybters are ib wgike, then wgat us half? i f9 counters te one hole, then what is one /third ?

asked by pat on October 26, 2010
55. ## Math

Use a half angle formula to determine the exact value of sin 7(pi)/12.

asked by David M. on April 28, 2010
56. ## MATH

Subtract six and one-half minus four and seven-tenths. Justify your steps

asked by cha on May 8, 2012
57. ## science

how many years will have to pass before only 3% of radioactive isotope is left if there is a half ye

asked by edward on September 9, 2015
58. ## Math

Write an expression to represent this situation (Four less than half a number???)

asked by Luna on April 15, 2019
59. ## calculus

Find limit as x goes to infinity of (6x-(1/4x))/(3x-(1/x))? one half –4 negative one fourth 2

asked by Anonymous on December 8, 2016
60. ## Heat and property matter

When a gas in a container is squeezed to half its volume,its density

asked by Hammed on April 23, 2015
61. ## Math

A turkey weighs 40 pounds plus half of its weight. What does it weigh?

asked by Sidney on February 11, 2016
62. ## physics

7/8 part of a substance decays in 45 days what is its half life

asked by abi on February 5, 2014
63. ## Math

Find an expression for the function. Top half of the circle: x^2+(y-2)^2=4.

asked by KC on September 10, 2012
64. ## chemistry

write the balanced half reaction for the conversion of Cl2(g)to Cl-(aq)

asked by amethyst on May 11, 2008
65. ## chem

can you explain half - equations and oxidation and reduction and how they are linked

asked by anonymouscientist on November 15, 2011
66. ## Geography

What political changes swept through Europe during the second half of the twentieth century?

asked by Craig on January 9, 2012
67. ## chemistry

How to solve CoCl2+HO2- ------> Co(OH)3+ Cl- by half reaction method

asked by Pratik Rathi on July 28, 2016
68. ## math

nine friends each get 1 half of a candybar. How many bars are there? show your work.

asked by rauline on March 14, 2015
69. ## MATH

How do I round 14 hours and 54 minutes to the nearest half hour?

asked by TROY on March 1, 2009
70. ## question!

What are the operating times at Jiskha when I can actually get a response within half an hour?

asked by Hannie on October 29, 2008
71. ## Math

negative three and a half is amember of which subset of real numbers?

asked by anonymoue on January 19, 2011
72. ## chemistry

If 6.90 g of (half-life = 5.30 y) are allowed to decay, how many grams would be left after 1.00 y and after 10.0 y?

asked by Kerrie on May 8, 2009
73. ## science

write the balaced half-reaction for the conversion of Fe(s) to Fe2+(aq)

asked by amethyst on May 10, 2008
74. ## math

The average of 1/5 and other two numbers out of which one is the half of the other is 1/4. What is the smallest fraction out of unknowns.

asked by Anna on January 23, 2019
75. ## chemistry

a piece of silver cut in half,density stays the same.Why?

asked by Anonymous on December 3, 2007
76. ## Math

Use the half formula to find the exact value of the expression sin 22.5

asked by Cassie on November 19, 2007
77. ## chemistry

I need the half reactions for this redox reaction: 2KClO3-----> 2KCl + 3 O2

asked by donna on June 9, 2013
78. ## Riddle

If it were 2 hours later than it is right now, it would be half as long until midnight as it would be if it were an hour later than right now. What time is it?

asked by Steve on January 20, 2010
79. ## Math

Subtract six and one-half minus four and seven-tenths. Justify your steps.

asked by Noemie on November 24, 2015
80. ## math

in a division sum dividing by 8 ,any remainder must be(a) more than 8,(b) half of 8,(c)less than 8,(d)equal to 8

asked by wan on October 20, 2012
81. ## Chem

Write the balanced overall reaction from these unbalanced half-reactions ln--->ln^3+ Cd^2+--->Cd

asked by Joe on April 17, 2014
82. ## Science

if the wood in the bowl contains only 1/16 of its original C-14, then its age is four half-lives of C-14.

asked by Anthony on December 13, 2012
83. ## math

write an algebraic expression representing three less than half a number

asked by alexis on March 6, 2011
84. ## arithmetic

find the cost of 100g rice at 95p per half kg

asked by Anonymous on January 16, 2012
85. ## science

calculate pressure on surface of tank of 3*2*2 cm if it is half filled

86. ## Math

Divide 30 by half and add 10. What do you get? I think it is 70, but my friend disagrees. He thinks it's 12.

asked by Erin on April 29, 2009
87. ## math

5 is half of my factor. the sum of my digits is four. i'm between 30 and 100. what number am i?

asked by lia on May 8, 2013
88. ## Math

P= P(initial)(1/2)^(t/80) I found Half-line:80 P=Pinitial(e)^(rt) i cant seem to find what r is. Help

asked by Priscila on April 9, 2017
89. ## college

If a single bacteria divides in half every 20 min. how many would you have after 42 hours?

asked by Christina on February 6, 2010
90. ## chem

La(s) ¨ La(OH)3(aq) (basic solution) Complete and balance the following half-reactions

asked by sarah on April 11, 2013
91. ## math

write an algebraic expression representing three less than half a number

asked by alexis on March 6, 2011
92. ## math

one half gallon equals ----- quarts. i think it 2 gallons can you correct me please?

asked by AA on September 22, 2008
93. ## Trig

How do i find the exact value of sin 15 using the half angle formula

asked by Briana on April 13, 2012
94. ## jiskha

is this all free my parents don`t half to pay any thing???

asked by Larry on May 2, 2016
95. ## math

write each mixed number as a decimal.3 and seven tenths. 4 and one half how??

asked by sam on May 15, 2013
96. ## chemistry

What is the half-life of an isotope if it decays to 12.5% of its radioactivity in 18 minutes?

asked by fatin on September 14, 2010

I am less than 100. The sum of my digits is 4. Half of me is an odd number.

asked by Skyshun on April 20, 2010
98. ## Trig

Use the half-angle formula to simplify (sin4theta)/(1+cos4theta)