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iogann1982 [59]
3 years ago
9

The course itself is 2/5 of a mile long. If Blake completed the four laps in 12 minutes, then his average speed around the track

is
miles per hour.
Submit
Mathematics
1 answer:
Blizzard [7]3 years ago
7 0
2*4=8
8/5=1.6
1.6miles:12minutes
60/12=5
5*1.6=8
Blake's avg. speed is 8mph

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Step-by-step explanation:

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What is equivalent to 1/2 (6x + 12 + 3)? Is it A. 18x + 36 - 9 B. 2x + 4 - 1 C. 2x + 12 - 3 D. 18x + 12 - 3
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Ana compró una cartera cuyo precio original es de x dólares con el 10% de descuento y un perfume con precio original de B dólare
katovenus [111]

Answer:

Tarea:

Ana compró una cartera cuyo precio es x dólares con el 10% de descuento y un perfume con precio original en dólares con un descuento del 15%. ¿Cuánto gastó Ana en total?

- Solución:

El precio estará en lenguaje algebraico, ya que no nos dan el dato de cuánto costó cada artículo.

• Hallamos el precio de la cartera con el descuento:

El precio original es x, entonces:

Regla de tres:

100 % --------> x

10 % -----------> ?

10 . x : 100 = ?

10x/100 = ?

El 10% del precio de la cartera es 10x/100.

Entonces el precio de la cartera es (x-10x/100).

• Hallamos el precio del perfume con el descuento:

El precio original es y, entonces:

Regla de tres:

100% -------> y

15 % --------> ?

15.y/100

El 15% del perfume es 15y/100.

Entonces el precio del perfume con el descuento es (y-15y/100).

Entonces lo que gastó en total es:

(x - 10x/100) + (y - 15y/100)

Step-by-step explanation:

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7 0
2 years ago
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ludmilkaskok [199]

Answer:

if your looking for z it is 5/8k+2.375

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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