Here’s a problem from Khan Academy’s SAT practice section. Please explain this one for me.
A marine aquarium has a small tank and a large tank, each containing only red and blue fish. In each tank, the ratio of red fish to blue fish is 3 to 4. The ratio of fish in the large tank to fish in the small tank is 46 to 5. What is the ratio of blue fish in the small tank to red fish in the large tank?
If it’s falling at a constant rate during the period, then we can conclude that it fell (3.4 mb/hr)(5 hr) = 17 mb. Now we just need to convert mb to mm Hg, using the given scale. Solve that for x and you get roughly 12.8. from Tumblr https://ift.tt/2w1cbUe
Q) A bag contains mangoes that are either green or yellow. The ratio of green mangoes to yellow mangoes in the bag is 3 to 5. When two green mangoes are removed and ten yellow mangoes are added, the ratio becomes 2 to 5. How many green mangoes were originally in the bag?
Can you do test 4 section 4 number 35 please?
How do you do Test 2 Section 3 Number 18?
Whats the best and fastest way of doing Practise test 1, section 4, question 23?
Would it be calculating the ratio of all the options and then comparing it to the Human Resources ratio?
Test 6 #20 from the no calculator section
Please answer #23 in test 2 section 4.
The circle graph above shows the percent of 4th graders at an elementary school who have the indicated numbers of pets in their homes. If 68 of the 4th graders have at least one pet, how many have exactly two pets?
at the certain camp, the counselor-to-camper ratio is 2 to 9. if the camp has 18 counselors, how many campers does it have
A new high-tech transportation system is to be built connecting a city at sea level and a suburb 3,500 feet above sea level. The maximum allowable grade is 3 percent, which means that the track for the new system can ascend no more than 3 feet for every 100 feet of horizontal length. What is the minimum whole number of feet of track needed for the new system?
A) 113,167 ft
B) 116,615 ft
C) 116,615 ft
D) 116,667 ft
E) 120,167 ft
How’s everyone else doing on this quiz?
Source: Married to the Sea. This started out as an Old MacDonald’s farm question. No wait, I thought to myself, not depressing enough. The prize this week: You’ll get the satisfaction of knowing that you probably solved this problem in less time than I spent staring at my computer screen trying to come up with a clever prize (more…)
Source. So here’s the thing with ratios and proportions on the SAT: they’re really easy. No, seriously, where are you going? Come back! They’re easy, I swear. All you have to do is keep very close track of your units, and you’ll be good to go. That means when you set up a proportion, actually (more…)