Ratios
There are 18 boys and 11 girls in a math class reunion, what is the ratio of girls to boys?
11:18
If Guillermo is driving at 85km/h, it takes him 4 hours to get to the beach, at what rate would he has to drive to get there in 3 hours?
113km/hr
Emilio is going to buy a new bike, the original price is $26,500, but lucky for him, this week it has a 15% discount. How much will Emilio pay for his new bike?
$22,525
If all the students in this class pay attention, take notes,do their homework and work in class. What is the percentage of students that will pass with a great grade?
100%
Who is the principal of PrepaTec San Luis Potosí?
Ana Laura Montiel
There are 169 trees in a park, out of which 65 are pines, 78 are palm trees and 26 are apple trees. What is te ratio of pines to apple trees? write your answer in simplified form
5:2
Andres gives María 16 roses and 3 chocolates for Valentines, if Gonzalo has 2 chocolates buts wants go give Mariana roses at the same proportion as Andrés did, how many roses does he has to buy?
10 roses
Sergio E is taking Natialia for breakfast because they finish their quiz. The bill was $238.50and they left 15% tip. How much did they pay in total? Round to the nearest tenth
$274.30
There is a Party to which Vale Galán and Ines are going and they were asked to bring chips and soda. They brought 27% coke, 17% soda, 14.1% sprite, and the rest diet coke. If there were 85 sodas, how many were there of soda?
20
What is Fabiana´s lastname?
Padilla
Ana Sofía socred 12 goals last seasson, the total number of goals of his team were 32, what is the ratio of Ana Sofia´s goals to the total number of goals?
3:8
In an eating contest, Ana Sofía and Arturo eat 47 hotdogs in 72 minutes, if they bring another member to the team, how many minutes will it take them to eat the same amount of hotdogs?
48 minutes
Vale Colonna and Daniel had to do an extra homework because they were not paying attention. If they got an 85% correct and there were 20 excercises total, how many of them they got wrong?
3 excercises
If Santiago Lazo has played 341 tennis matches and has won 286 of them, what percentage has he lost?
16.1%
How many math teachers are there in 1st semester?
5 teachers (Ana, Gus, María, Brenda and Irma)
Mariana solved 14 math excercises during class, out of 22. She relized that 2 of them were wrong. What is the ratio of the excercises done wrong to the ones she did right?
1:7
If Paula needs to memorize 12 songs for a TV show, and this represents 2/3 of the songs she needs to know, how many songs are there in the contest?
18 songs
If Andre, Erick and Sergio G played 48 matches of UNO, and Andre has won 25% of them, Erick 37.5% and Sergio G the rest, how many games have each one won?
Andre - 12
Erick - 18
Sergio - 18
Karen and Ana Caro are organizing a bake sale, It takes them 17 hours to have the cakes ready, if they invite Marcelo, Ana Sofi and Sofía, how long will it take them to bake all the cakes?
6.8 hours
What is the name of PrepaTec Robotics team?
Lambot
There are 16 boys and 13 girls in a running club, 13 boys and 9 qualified to the nationals. What is the ratio of the non-qualified boys to the whole group?
3:29
Alberto is saving money to take Andrea to a nice dinner date, if he has $48 dollars and this represents 5/7 of what he needs, what would be the total amout he needs?
$67.50
Camila and Fátima are throwing a party, and they invited 135 friends. 27 of them are from the soccer team, 52 are from school, 16 from their singing class and the rest from camp. What percentage of friends are from the singing class?
11.85%
María signed up for a triathlon, she is going to swim 2km, bike 90km and run 21km, what percentage of the race is the bike part?
79.6%
Who are the heads of: humanities, languages and science at PrepaTec
Humanities - Pablo
Languages - Perla
Science - María