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3 years ago

13/4 + c = 3/4 what’s c,?

Mathematics

2 answers:

CaHeK987 [17]3 years ago

8 0

Answer:

c = -2.5

Step-by-step explanation:

13/4 + c =3/4

2.5 + c = 0

c=-2.5

Igoryamba3 years ago

3 0

Answer:

Step-by-step explanation:

13/4+c=3/4

C=3/4-13/4

C=2 1/2

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La base de una cartulina rectangular mide 8 cm de altura si le recortamos 3 cm a su altura el area de la nueva cartulina seria 1

aev [14]

Answer:

$w=8cm\\h=18.75cm$

Step-by-step explanation:

Let:

$w=Width\\h=Initial\hspace{3}height\\h_m=Modified\hspace{3}height\\\\Where:\\\\h_m=h-3$

The area of the cardboard can be calculated using the formula to find the area of a rectangle:

$A=w*h$

The area of the new cardboard would be:

$A=w*h_m\\\\Where:\\\\w=8\\h_m=h-3\\A=126$

So:

$126=8*(h-3)\\\\126=8h-24$

Solving for h:

$126+24=8h\\\\150=8h\\\\h=\frac{150}{8} =\frac{75}{4} =18.75cm$

Therefore, the dimensions of the initial cardboard are:

$w=8cm\\h=18.75cm$

<u><em>Translation:</em></u>

Sea:

$w=Ancho\\h=Altura\hspace{3}inicial\\h_m=Altura\hspace{3}modificada\\\\Donde:\\\\h_m=h-3$

El área de la cartulina se puede calcular usando la fórmula para encontrar el área de un rectángulo:

$A=w*h$

El área de la nueva cartulina sería:

$A=w*h_m\\\\Donde:\\\\w=8\\h_m=h-3\\A=126$

Entonces:

$126=8*(h-3)\\\\126=8h-24$

Resolviendo para h:

$126+24=8h\\\\150=8h\\\\h=\frac{150}{8} =\frac{75}{4} =18.75cm$

Por lo tanto, las dimensiones de la cartulina inicial son:

$w=8cm\\h=18.75cm$

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