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Jet001 [13]
3 years ago
7

What is the speed of a car that goes 299 kilometers in 2 hours?

Mathematics
1 answer:
Natali [406]3 years ago
3 0

Answer:

149.5km/s

Step-by-step explanation:

speed= distance/time

distance= 299km

time=2hours

speed=299/2

speed=149.5km/h

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What is a ratio of 625 : 1296 simplified?
Georgia [21]

Answer:

625: 1296

Step-by-step explanation:

625: 1296 cannot be further simplified because they share no common factor.  The decimal form around 0.5822531

7 0
2 years ago
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La profesora de matemáticas solicita a dos estudiantes que describan las cosas que les han parecido interesantes de los números
Makovka662 [10]

Answer:

Respuesta D

Step-by-step explanation:

Paola afirma: Todo número compuesto par, se puede escribir como la multiplicación de factores primos.

Esta afirmación es cierta, pues es un caso  de la afirmación de que todo número natural mayor que uno se puede escribir como multiplicación de números primos. A este proceso se le llama descomposición en factores primos.

Edwin afirma: Todo número compuesto impar se puede escribir como la suma de dos números primos.

Esta afirmación es falsa. Note que al sumar dos números impares de la forma 2k+1 y 2m+1 para k distinto de m, se obtiene

2k+1+2m+1 = 2(km+1)

Es decir, la suma de dos números impares es siempre par.

Note que a excepción de 2, todo número primo es impar. Para que esta afirmación fuera cierta, necesariamente tendría que pasar que cualquier número impar k se escriba de la forma p+2 donde p es un número primo. Esto es equivalente que para cualquier número impar k, el número k-2 sea primo.

Basta con dar un ejemplo para ver que esto no pasa. Tomemos k=11. En este caso, k-2 = 9, el cuál no es un número primo. Entonces 11 no se puede  descomponer como la suma de dos números primos.

5 0
4 years ago
Stark Airlines has fourteen daily flights
schepotkina [342]

Answer: 126

Step-by-step explanation: 14 x 9 is 126, so its 126!!

5 0
3 years ago
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Ben's employer will reimburse him $0.13 per mile driven. If Ben drives 210.1 miles on a business trip, what is his mileage reimb
Helen [10]

Answer:

27.31

Step-by-step explanation:

Take the number of miles and multiply by the reimbursement rate

210.1 * .13

27.313

Round to the nearest cent

27.31

5 0
3 years ago
7(3x/1)=-1<br>its distributive property but I don't know how to solve it​
Lelu [443]
7(3x/1)=-1
7(3x)=-1
21x=-1
21x/21=-1/21
X=-1/21

Answer: -1/21
7 0
3 years ago
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