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Question 1174271: A machine can harvest the farm in 15 days working for 8 hours a day. How long will 2 machines take to harvest it if they were used for 10 hours?
Click here to see answer by greenestamps(13198)

Question 1174278: a map is drawn to a scale of 1:5000 on the map, a village has an area of 6cm2. find the true area of the village in hectare
Click here to see answer by ikleyn(52776)

Question 1174829: A certain paint colour is created by mixing 3 parts of red with every 5 parts of blue. How many gallons of red paints are needed to mix 40 gallons of this colour
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Question 1174881: The two figures at the right are similar. A student
uses the proportion BC
CJ 5 GH
FN to find FN.
a. What mistake did the student make?
b. What proportion should the student have used instead?
Click here to see answer by MathLover1(20849)

Question 1175166: A cyclist completes a circle of 15km. She circuit at an average speed of 12km per hour. How long does it take her to complete the circuit?
Click here to see answer by ikleyn(52776)

Question 1175217: Brantley and shawna walk to grandmas house at a rate of 4mi/hr. They ride their bicycles back at 8 mi/hr over the same route that they walked, it takes 1hr longer to walk then ride. How long did it take them to walk to grandmas
Click here to see answer by Boreal(15235)

Question 1175348: ski toll rises 39.5 metres over horizontal distance of 118.8 metres. what distance have you risen if you have travelled 750.2 metres horizontally
Click here to see answer by ewatrrr(24785)

Question 1175656: A textbook store sold a combined total of 247 chemistry and history textbooks in a week. The number of history textbooks sold was 45 less than the number of chemistry textbooks sold. How many textbooks of each type were sold?
Click here to see answer by ikleyn(52776)

Question 1175670: In a blueprint of a rectangular room, the length is one inch more than 3 times the width. How to find the dimensions if the perimeter is to be 26 inches?
Click here to see answer by josgarithmetic(39616)

Question 1175850: This is a statistics homework question, I'm a bit lost on how to go about it. I would greatly appreciate the help:
In 2014, 6% of the cars sold had a manual transmission. A random sample of college students who owned cars revealed the following: out of 122 cars, 26 had manual transmissions. Estimate the proportion of college students who drive cars with manual transmissions with 90% confidence.
Click here to see answer by ewatrrr(24785)

Question 1093968: the aspect ratio of a TV screen is the ratio of the measure of the vertical length. Find the horizontal length and vertical height of a TV screen with an aspect ratio of 4: 3 and a diagonal of 50 inches

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Question 1093079: What would the proportionality statement for triangle PQR and UTS
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Question 1093079: What would the proportionality statement for triangle PQR and UTS
Click here to see answer by ikleyn(52776)

Question 1176051: A building contractor hires 8 bricklayers and 2 roofers, his daily payroll is #960, while 10 bricklayers and 5 roofers require a daily payroll of #1500. What is the daily payroll of a bricklayer and a roofer?
Click here to see answer by Theo(13342)

Question 1168371: If mark gives john 6 apples, mark will have 2/3 of the apples that john will have.
Now if jaime gives 9 apples to mark then john will have 2/3 of the apples
that mark will help. How many apples eache have?
Click here to see answer by CubeyThePenguin(3113)

Question 1176158: 1. A boy cuts a wood measuring 30 cm long into three pieces in the ratio of 1:3:4. Find the length of each.
2. Ms. Linda bought 650 m of curtain fabric. She cut the material into 3 rolls, in the ratio of 4:5:6. How many meters does each roll of curtain contain?
3. The difference between two numbers is 50. They are in the ratio of 10:8. Find the numbers.
4. Divide 6, 160 into four parts observing a ratio of 2:3:4:5. What is the value of each Part.
Click here to see answer by josgarithmetic(39616)

Question 1176420: Past studies have indicated that the percentage of smokers was estimated to be about 33%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 2215 people and found that 687 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced.
Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places
Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places.
Click here to see answer by Boreal(15235)

Question 1176454: Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.
A sample of 57 stocks traded on the NYSE that day showed that 23 went up.
You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of 0.01
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value
.
Click here to see answer by Boreal(15235)

Question 1176455: Is college worth it? Part I: Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 48% said they decided not to go to college because they could not afford school.

(a) A newspaper article states that only a minority of the Americans who decide not to go to college do so because they cannot afford it and uses the point estimate from this survey as evidence. Conduct a hypothesis test to determine if these data provide strong evidence supporting this statement.
The hypotheses for this test are:
Ho: p = .5
Ha: p < .5
The test statistic is: (please round to two decimal places)
The p-value associated with this hypothesis test is: Incorrect (please round to four decimal places)
Click here to see answer by Boreal(15235)

Question 1176453: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to patients with the flu and say that nausea is a side effect if people become nauseous. This is because nausea is common for people who have the flu. From past studies you know that about 30% of people who get the flu experience nausea. You collected data on 1595 patients who were taking Tamiflu to relieve symtoms of the flu, and found that 525 experienced nausea. Use a 0.01 significance level to test the claim that the percentage of people who take Tamiflu for the relief of flu symtoms and experience nausea is greater than 30%.
Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places.
Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places.

Click here to see answer by Boreal(15235)

Question 1177167: U Varies directly with v. U is 91 when v is 14. find U when V is 22
Click here to see answer by MathLover1(20849)

Question 1177186: For a school project, a student wants to build a replica of the great pyramid of giza out of modelling clay. The real Great Pyramid has a square base with side length of 750 feet and a height of 500 feet. If the student has 162 cubic inches of clay for her model, what height will her pyramid be in inches?
V= 1/3(L*W*H)
Click here to see answer by greenestamps(13198)

Question 1177493: The ratio of men to women working for a company is 5 to 6. If there are 209 employees total, how many men work for the company?
Click here to see answer by ikleyn(52776)

Question 1177948: If A = 1,386 square centimeters and pie = 22/7, find r. A =nr^2
I come up with answer of 21.004 for r.
Can your verify that I am correct. If I have calculated incorrectly, please show steps to get correct answer.
Thank you
Click here to see answer by math_helper(2461)

Question 1178230: Find out how much a retirement account based on a principal of $124247 compounded 3 % quarterly after 20 years is worth?
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Question 1178229: Find out how much a retirement account based on a principal of $124247 compounded 3 % quarterly after 29 years is worth?
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Question 1178282: One kind of hard candy sells for $0.89 per kilogram. Another sells for $1.10 per kilogram. How many kilograms of each kind will need to be used for 30 kilograms of a mixture to sell for $0.96 per kilogram?
My answer is:
x = 20
30 - x = 30 - 20 = 10
Is my answer correct? If not, please provide the steps taken for solving this problem.
Thank you
Click here to see answer by josgarithmetic(39616)

Question 1178284: Can you show me how to work the steps to solve the below problem?
For a school play, student tickets cost 40 cents and adult tickets cost 75 cents. The total receipts for 90 tickets were $46.50. How many of each kind student and adult tickets were sold?
Thank you
Click here to see answer by josgarithmetic(39616)

Question 1178283: Can you show me how to work the steps to solve the below problem?
How many milliliters of vinegar must be added to 20 milliliters of a 10% vinegar solution to make it 25% vinegar solution.
Thank you
Click here to see answer by josgarithmetic(39616)

Question 1178923: A recipe requires 3/4 cup of nuts for 1 cake.
Enter the maximum number of cakes that can be made using 7 1/2 cups of nuts.
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Question 1178923: A recipe requires 3/4 cup of nuts for 1 cake.
Enter the maximum number of cakes that can be made using 7 1/2 cups of nuts.
Click here to see answer by ikleyn(52776)

Question 1178921: Darcy likes to eat peanut butter and raisins on apple slices. On each apple slice she puts 1/16 cup of peanut butter and 8 raisins.
Darcy has 2/5 cup of peanut butter and 80 raisins. She eats a whole number of apple slices until the peanut butter is all gone. What fraction of the 80 raisins did she eat?

Click here to see answer by ikleyn(52776)

Question 1179146: 2/3 the sum of two numbers is 12. One of the numbers is 10, what is the other number?
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Question 1179146: 2/3 the sum of two numbers is 12. One of the numbers is 10, what is the other number?
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Question 1179145: $120 is shared among three boys. Tom gets $5 more than Ram who gets $5 more than Chin. How much does Tom get?
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Question 1179145: $120 is shared among three boys. Tom gets $5 more than Ram who gets $5 more than Chin. How much does Tom get?
Click here to see answer by ikleyn(52776)

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