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xeze [42]
3 years ago
11

Anyone know this ? step-by-step please

Mathematics
1 answer:
Helga [31]3 years ago
3 0

Answer:

9.3

Step-by-step explanation:

substitute the given values for c and d into the expression

(0.9 × 15 ) - (2.1 × 2 )

= 13.5 - 4.2 = 9.3


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Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the block
Sedbober [7]

Answer:

A. 1.5 pounds per block

Step-by-step explanation:

The conversion factor shows 2 blocks on the right and three 1 pound blocks on the left. It takes two 1 pound blocks to make 2 and then you get your 3rd block, making it 3 (.5 more than 2.5) needing another block to add a .5

8 0
2 years ago
Read 2 more answers
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
Which of the following shows the polynomial below written in descending order?
Ray Of Light [21]

Answer:

D

Step-by-step explanation:

the polynomial written in descending order:

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8 0
3 years ago
How do you write the sum of one-sixth of n and one-fifth of g
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Answer: \frac{n}{6}+\frac{g}{5}

Step-by-step explanation:

One-sixth of n is n/6.

One-fifth of g is g/5.

The sum means to add, so the expression is \frac{n}{6}+\frac{g}{5}.

8 0
2 years ago
Helena foi a feira com certa quantia. Gastou metade dessa quantia na banca de frutas e um terço dessa quantia na banca de verdur
Aleonysh [2.5K]

Answer:

english pleas

Step-by-step explanation:

5 0
2 years ago
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