All categories

3 years ago

The difference between two rational numbers and get a negative number

Mathematics

1 answer:

expeople1 [14]3 years ago

4 0

2-3 is -1. difference between two rational numbers that make a negative

You might be interested in

In 1992, there were 120 students in the freshmen class. in 2005, there were 224. find the rate of change from 1992 to 2005.

kolezko [41]

b) 8

they were asking you about the rate of increase in students per year

so you take increase in students/years= (224-120)/(2005-1992)=104/13=8

7 0

4 years ago

(4v^3-3v^2)+(3v^3+6v^2-9v)

Alexxandr [17]

Answer:

7v^3+3v^2-9v

Step-by-step explanation:

This is the simplified version

3 0

3 years ago

A website that sells movie tickets can tell what devices are used to access their site and make purchases. The manager of the we

LiRa [457]

Answer:

The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.

Step-by-step explanation:

We take the estimate from the website, and expand for all buyers, to find the proportion that use their smartphones.

400 users of the website were randomly sampled from the existing database and 180 were found to have used their smart phones.

180/400 = 0.45

The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.

4 0

3 years ago

Para festeja su cumpleaños,Nancy compró 15 paquetes de pizzetas. Si cocinó 288 pizzetas, cuántos paquetes completos le quedaron?

Lorico [155]

Answer:

Nancy consumió 12 paquetes de pizzetas y le quedaron 3 paquetes completos.

Step-by-step explanation:

En primer lugar, debemos descomponer el número total de pizzas como una multiplicación de números primos. Al realizar la descomposición factorial tenemos que:

$288 = 2 \times 2 \times 2 \times 2 \times 2 \times 3 \times 3$

Entonces, los familia de divisores de 288 es el siguiente conjunto:

$D_{288} = \{2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144 \}$

Si tanto la cantidad de paquetes de pizzetas y la cantidad cocinada de pizzetas son números enteros y positivos, siendo la última mucho mayor. Entonces, la cantidad de pizzetas debe ser un número entero y la cantidad de paquetes gastados menor a la cantidad de paquetes comprados y el número entero más cercano a esa cantidad. Entonces, concluimos que Nancy se gastó 12 paquetes de pizzetas, quedándole 3 paquetes completos.

6 0

3 years ago

Games at a carnival cost $3. prizes awarded to winners cost $145.65. how many games must be played to make $50

stich3 [128]

Answer:

Step-by-step explanation:

3×1405 and $.65

8 0

3 years ago