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Arisa [49]
2 years ago
11

Write an Algebraic expression for the following phrases. K. The sum of a number m and 15 L. 6 more than a number x M. 8 less tha

n N. 27 of a number N. The sum of three consecutive integers 0. The sum two consecutive even integers​

Mathematics
1 answer:
dmitriy555 [2]2 years ago
6 0

1:-

\\ \sf\longmapsto m+15

2:-

\\ \sf\longmapsto x+6

3:-

\\ \sf\longmapsto r-8

4:-

\\ \sf\longmapsto \dfrac{3}{4}x=\dfrac{3x}{4}

5:-

\\ \sf\longmapsto n(n-1)(n-2)=n!

6:-

\\ \sf\longmapsto n+(n+2)=2n+2

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A website received 2500 registered members in July. And the number of registered members in August decreased to 2245. What was t
quester [9]

Number of registrations a website received during July = 2500

Number of registrations a website received during August = 2245

Number by which the registrations decreased :

=\tt 2500 - 2245

=\tt 255

Thus, the registrations decreased by 255.

Let x be the perrcentage of decrease.

Which means :

=\tt 255 =  \frac{x}{100}  \: of \: 2500

= \tt255 =  \frac{x \times 2500}{100}

=\tt 255 =  \frac{2500x}{100}

= \tt255 \times 100  = 2500x

= \tt25500 = 2500x

=\tt  \frac{25000}{2500}  = x

\color{plum} =\tt  \bold{10.2\%}

▪︎Thus, the percentage of decrease in the number of registered members = 10.2%

5 0
2 years ago
Mike's grandmother opened a savings account in Mike's name and deposited some money into the account. The account pays an annual
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7 0
3 years ago
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.

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3 years ago
A ream of paper contains 500 sheets of paper.Norm has 373 sheets of paper left from a ream.Express the protion of a norm has a f
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373/500
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Find the distance BF for the points B(1,-1) and F(-3,5)
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<span>
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<span>
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\sqrt{16+36}

\sqrt{52}
You can leave it as: \sqrt{52}or in decimal form as: 7.2
</span></span>
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3 years ago
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