Garrett has a rock collection, he had 150 rocks in his collection but then went on vacation to a state park and now he has 215 rocks! What was the percent change in his collection? (Round to the nearest percent) Write a proportion

Q: A buyer purchases 20 percent of the 900 widgets in a warehouses inventory. Ihe next day, another…

A: Given data- Total number of widgets in a warehouse's inventory = 900 We have given that a buyer…

Q: Christina had a coupon for 20% off and a coupon for $20. Which would be better to use on a dining…

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Q: A restaurant bill for 4 people is $120. The group leaves a tip of $18. What percent tip is that? 1.…

A: Given information Restaurant bill is $120 and the group leaves a tip of $18. We have to find the…

Q: Forty percent of the students in a math class have brown eyes. If there are 10 students with brown…

A: Given,         Forty percent of the students in a math class have brown eyes. There are 10 students…

Q: New Orleans averages 86% humidity in the mornings, but it decreases by 19% in the afternoon. What is…

A:

Q: Ms. Griffith took a cab ride which cost $16.  She gave the driver $20 and said, “keep the change.”…

A:

Q: seventeen percent of the plants in the greenhouse are broad leaf plants and the rest are grasses.…

A: Given, that there are broad leaf plants and grasses are in greenhouse, where 17% of the plants in…

Q: ffice supply store adds a $2.50 markup to calculators and sells them for $5.95.   (a) What is the…

A: To find the C.P and % markup.

Q: The price of a video game was reduced from $60 to $45. By what percentage was the price of the video…

A: percentage of reduced price is 25% detailed solution is given below

Q: 3. A flower stand purchases a dozen roses for $9.00. They sell a dozen roses to their customers for…

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Q: Maggie categorized her food spending for this month into four categories: Groceries, Other, Hot…

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Q: enn buys candy cars for $0.45 and sells them to her friends for $2.25. What is the percent mark-up?

A: Cost price=0.45 Selling price=2.25

Q: Raina ran for president of the chess club, and she received 39 votes. There were 65 members in the…

A:

Q: I have a 79% in my earth and space class and I have a final worth 50 points if I get a 100 percent…

A: Given information: The current grade (C) is 79%. The grade that is wanted on the final (G) = 100%.…

Q: If erwan owns 120 books of which 70% are fantasy and Julie has 80 books of which 25% are fantasy.…

A: Given, Erwan has 120 books of which 70% are fantasy books, and Julie has 80 books out of which 25%…

Q: A school held a jump-roping contest. Diego jumped rope for 20 minutes. Jada jumped rope for 15…

A: detailed solution is given below

Q: You make a variety of muffins for a brunch you are catering,You make 6 corn, 6 blueberry,12 oat bran…

A:

Q: An ice cream shop in Hillsdale sells a variety of different flavors and keeps track of its weekly…

A: The data related to weekly sales of different flavors of ice-cream is given.

Q: . The Smith family went to dinner at a restaurant and had a total bill of $ 120. If they left a tip…

A:

Q: n 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: It is given that the median family income in the United States is $66,650.

Q: In examination of two proportion difference we can apply either Z or X2 test O True O False

A: For testing the difference of two proportions the z statistic must be used. The two proportion test…

Q: 5.) Nick has collected 21 of the necessary 140 parts of the robot he is building. What percent of…

A: We know, percentage = valueTotal value×100

Q: An actor bought a​ pearl, diamond, and ruby necklace for his famous wife for $46,000.   In 2011 this…

A: Given:- An actor bought a​ pearl, diamond, and ruby necklace for his famous wife for $46,000.  In…

Q: Last year’s freshman class at Big State University totaled 5,307 students. Of those, 1,259 received…

A: Given that there are total 5307 students at Big State University in last year and out  of which…

Q: A 250 gaming system is discounted by 25 percent . It was then discounted another 10 percent because…

A: Here we calculate the cost on each discount.

Q: buys

A: Percentage = {(Part of quantity)/(Total quantity)}*100

Q: 14 students want lemonade and 15 students want iced tea. What is the ratio of the number of students…

A:

Q: Last year's freshman class at Big State University totaled 5,320 students. Of those, 1,262 received…

A: Given: Meanμ=3450Standard Deviationσ=480

Q: A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only…

A: Given: A swimmer pool had 2.5 million liters of water in it. After the evaporation pool only had 2…

Q: What is the ingredient cost of a cake if the food cost percent is 12% and the selling price is…

A: Given that: Food cost percent = 12%Selling Price=$32.95

Q: If the airline sells 644 tickets on the night flights, how many unsold tickets can the airline…

A:

Q: All of the 1,020 students at a local high school must enroll in a foreign language course. If 269…

A: The detailed solution is given in the next step.

Q: Mrs. Jones had 25 students in her 1" period class last year. Eighteen of those students in her 1*…

A:

Q: find the proportion that likes pizza.

A: Given : Question number of people who say yes Do you like Burgers ? 44 Do you like pizza ? 39…

Q: Last year’s freshman class at Big State University totaled 5,303 students. Of those, 1,266 received…

A: Given, The amount a student received was N($3,458, $473) Mean = $3458 standard deviation, SD = $473…

Q: Ron has a co-op in Astor Cooperative. The total shares in the cooperative are 40,000 shares. If Ron…

A: In this question we can find percentage of the cooperative corporation does Ron own. Thus,…

Q: Remember, you will be given one type of portion and have to write it first and then find the other…

A: We can represent a given number into percentage, fraction or decimal and can convert one form into…

Q: Zane went out shopping and all of the Halloween decorations were now discounted by 15%, he bought a…

A: Zane went out shopping and all of the Halloween decorations were now discounted by 15%, he bought a…

Q: - Of the people who attended the school play, students and were 12 were teachers. What fraction of…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: Lisa bought a new dress on sale at “Teen Hottie” and paid only $75. If it had previously been listed…

A: Given: price listed on dress=$125, paid for dress=$75 we know that discount d is given by d=listed…

Q: Madelyn and her brother Reid are trying to decide who likes mystery novels more. On their last trip…

A: Let ratio of two items A and B= p:q and ratio  of two items B and C= q:r  Then ratio of A and C= p:r…

Q: If you eat one quarter of a pizza and your dog eats one eight of it, what percent is left over?

A:

Q: In a survey, 7 out of 8 people preferred cooking to washing dishes. How would you write this ratio…

A: In a survey, 7 out of 8 people preferred cooking to washing dishes. How would you write this…

Q: Last year's freshman class at Big State University totaled 5,307 students. Of those, 1,259 received…

A: The random variable X is defined as the cost of tuition which follows normal distribution with mean…

Q: Last year’s freshman class at Big State University totaled 5,340 students. Of those, 1,252 received…

A: The scholarship amount is normally distributed with mean = $3,462 and standard deviation = $482…

Q: In a city of 72,000 people, there are 27,000 people under 25 years of age. What percent of the…

A: The formula for percentage is, Perecent of Population=Population under 25 year ageTotal…

Q: II. Identify if the problem involves direct or indirect proportion. 1. Arecipe for 20 rolls call for…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: onions have a 89% yield percent and you have 3 pounds of trim after peeling onions. how many pounds…

A: