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sweet-ann [11.9K]
3 years ago
14

Evaluate 4x + 5y , when x = 7 and y = 10

Mathematics
2 answers:
Sladkaya [172]3 years ago
5 0

Hi ;-)

x=7 \ and \ y=10\\\\4x+5y=4\cdot7+5\cdot10=28+50=\boxed{78}

MAXImum [283]3 years ago
3 0

Step-by-step explanation:

4x + 5y

4 × 7 + 5 × 10

28 + 50

78

Therefore its 78.

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Write 66² as a product of its prime factors <br><br> Please ill award brainlist
mestny [16]

Answer:

11

Step-by-step explanation:

the image above explains it

8 0
2 years ago
Cuánto dinero me gasto en colocarle baldosas a una sala comedor que tiene 9.30 de largo por 4.20 metros de ancho
Svetlanka [38]

La pregunta está incompleta ya que no se da el costo de la colocación de baldosas por m².

Suponga que el costo de los mosaicos por m² = c

Respuesta:

39.06c

Explicación paso a paso:

El costo del embaldosado será:

El costo por m² * área total a embaldosar

Dado que :

La dimensión de la habitación a embaldosar es:

Longitud = 9,30 metros

Ancho = 4.20 metros

El área total de la habitación a embaldosar es = Largo * ancho

Área total de la habitación a embaldosar = 9,30 m * 4,20 m

Superficie total de la habitación a embaldosar = 39,06 m²

Si el costo del mosaico por m² = c

El costo de embaldosar la habitación será:

39,06 * c = 39,06c

4 0
3 years ago
Please help with this question. I would appreciate it!
Veronika [31]

Answer:

Mass of A = 5760 grams

Step-by-step explanation:

Surface area is given, so we can set-up a similarity equation to solve for k, proportionality constant. Here, we will relate both of them through k^2, because they are 2 dimensional (area). Thus

Surface Area of A = k^2 * Surface Area of B

28 = k^2 * 40.32

k^2 = 28/40.32

k^2 = 25/36

k = Sqrt (25/36)

k = 5/6

Now, we want to find mass (1 dimensional quantity), thus we can say:

Mass of A = k * Mass of B

Mass of A = (5/6) * (6912)

Mass of A = 5760 grams

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3 years ago
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3 years ago
Which graph represents the solution of y &gt; x2 + 2?
Vladimir [108]
The questions is asking which one and i say is graph B
4 0
2 years ago
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