Problemas
7 Resuelve.
- Lola sacó 3 entradas de adulto y 1 infantil en el cine.
La entr...
![subject](/tpl/images/cats/mat.png)
Mathematics, 17.01.2021 21:00 Lollipop1287
Problemas
7 Resuelve.
- Lola sacó 3 entradas de adulto y 1 infantil en el cine.
La entrada infantil costaba 6,75 € y pagó en total
29,55 €. ¿Cuánto costaba una entrada de adulto?
- Marta ha comprado 3,6 kg de peras por 6,84 €,
y David ha comprado 2,7 kg de peras por 4,86 €.
¿Quién ha comprado más barato el kilo de peras?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 07.10.2020 20:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 07.10.2020 20:01
![question](/tpl/images/cats/en.png)
English, 07.10.2020 20:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 07.10.2020 20:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/en.png)
English, 07.10.2020 20:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 07.10.2020 20:01
![question](/tpl/images/cats/mat.png)
Mathematics, 07.10.2020 20:01
![question](/tpl/images/cats/mat.png)
Mathematics, 07.10.2020 20:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.10.2020 20:01