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lord [1]
3 years ago
9

Plz help decrease 420 by 7%

Mathematics
1 answer:
UNO [17]3 years ago
7 0
So you would work out
5%= 21
and then you would need to work out 2%
1%=4.2
2%=8.4
21+8.4
=29.4
420-29.4
=390.6
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10x(15w-11)+12 what is it help me
RUDIKE [14]
If im not wrong the answer is 150w - 98.
5 0
3 years ago
Un alumno multiplica un número por 32 en lugar de multiplicarlo por 23, obteniendo un producto mayor en 54 al producto original.
romanna [79]

Answer:

La suma de cifras del producto original es igual a 12.

Step-by-step explanation:

De acuerdo a la información proporcionada, si multiplicas un número "x" por 32 su resultado sería igual al producto original "y" más 54 dado que dice que se obtiene un producto mayor en 54 al producto original, lo que se puede expresar de la siguiente forma:

32x=y+54

Además, se puede inferir a partir del enunciado que si el número x se hubiera multiplicado por 23 el resultado habría sido el producto original que lo denominamos como "y", por lo que puedes decir que:

y=23x

Ahora puedes reemplazar y=23x en 32x=y+54 y despejar x:

32x=23x+54

32x-23x=54

9x=54

x=54/9

x=6

Finalmente, puedes reemplazar el valor de x en y=23x:

y=23x

y=23*6

y=138

Suma de cifras: 1+3+8 = 12

De acuerdo a esto, la respuesta es que la suma de cifras es igual a 12.

5 0
3 years ago
Least common multiple of 13 and 52?
Kruka [31]
2213 would be the correct answer
6 0
3 years ago
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choli [55]

Answer:

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Step-by-step explanation:

Hope this helps

5 0
3 years ago
Consider the system of linear equations and the matrix equations below.
gregori [183]

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

Using Cramer's rule, the value of x is ...

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  x = 7

4 0
3 years ago
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