Equations with Ratios and Proportions - Page 3
Questions
- How do you solve #(x+2)/(x-2)=4/8#?
- During a paint sale, a hardware store sold 33 gallons of flat paint and 57 gallons of high-gloss paint. What is the ratio of gallons of high-gloss sold to the total gallons sold?
- Three pumps can remove a total of 1700 gallons of water per minute from a flooded mineshaft. If engineers want to remove at least 5500 gallons per minute, how many pumps will they need operating?
- A fire department in a rural county reports that its response time to fires is approximately Normally distributed with a mean of 22 minutes and a standard deviation of 11.9 minutes. Approximately what proportion of their response times is over 30 minutes?
- How do you solve #3/18=F/6#?
- How many inches are in 6 meters?
- What would be the distance between two towns if a map is drawn to the scale of 1 : 100, 000 and the distance between 2 towns is 2km?
- A school has 950 students. The ratio of female students to all students #48/95#. How do you write and solve a proportion to find the number #f# of students that are female?
- What is the volume of the larger sphere if the diameters of two spheres are in the ratio of 2:3 and the sum of their volumes is 1260 cu.m?
- There are #32# girls and #56# boys. How many teams can be formed all having equal number of girls and boys?
- The scale on a roadmap is listed as 1 inch: 80 miles. On the map, Belleville and San Jose are 1.5 inches apart. What is the actual distance in miles between the two cities?
- How do you solve #9| v - 4| + 3< 39#?
- What is the ratio of the angle sum of a triangle to the angle sum of a quadrilateral?
- Carla can read 18 pages in 25 minutes. How long will it take for her to read 76 pages?
- How do you solve #(x+2)/2=(x-6)/10#?
- How do you solve #v/(v-9)=10/6#?
- How do you determine whether the ratios are equivalent: 3/4, 24/32#?
- Joey solves math problems at a rate of 3 problems every 7 minutes. If he continues work at the same rate, how long will it take Joey to solve 45 problems?
- A survey concluded that for every 5 people who preferred to watch television, 3 people preferred reading in their spare time. If 950 people in the survey preferred television, how many preferred reading?
- How do you solve #X/50=100/2 # and find any extraneous solutions?