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Mariana [72]
4 years ago
9

3∙(a+x), if a=8; x=−10

Mathematics
1 answer:
Oksi-84 [34.3K]4 years ago
6 0
Your answer should be -6
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Un apostador pierde en su primer juego el 30% de su dinero, en el segundo juego pierde el 50% de lo que perdió; finalmente en el
sergiy2304 [10]

Responder:

26,62

Explicación paso a paso:

Sea x el dinero original que tenía el jugador:

si un jugador pierde en su primer juego el 30% de su dinero, la cantidad perdida será;

= 30/100 \ of \ x\\= 0.3x

Si en el segundo juego pierde el 50% de lo que perdió, entonces la cantidad perdida en el segundo juego será:

= 50/100 \ of \ 0.3x\\= 0.5 \times 0.3x\\= 0.15x

Si en el tercer juego pierde el 40% de todo lo que ha perdido, la cantidad perdida en el tercer juego será:

=\frac{40}{100} \ of \ (0.3x+0.15x) \\= 0.4(0.45x)\\= 0.2025x

Si la cantidad que le queda para seguir apostando es de 37 soles, entonces para calcular la cantidad original que tiene, sumaremos toda la cantidad perdida y la cantidad restante y equipararemos la cantidad original x como se muestra:

0,3x + 0,15x + 0,2025x + 37 = x

0,6525x + 37 = x

x-0,6525x = 37

0,3475x = 37

x = 37 / 0,3475

x = 106,48

La cantidad que tenía originalmente era de 106,48

75% de 106,48

= 75/100 * 106,48

= 0,75 * 106,48

= 79,86

Tomando la diferencia entre su monto original y su 75% será:

= 106.48-79.86\\= 26.62

3 0
3 years ago
Eight bungee cord for $10 or 20 bungee cords for $20
ICE Princess25 [194]

20 bungee cords for $10

6 0
3 years ago
Angle A (6×-1 B 20degrees C (×+14degrees)
Art [367]
First you add all given angles up to equal 180 to give you Times in to equations

A= 125 degrees

C= 35 degrees

I hope I help you and good luck
4 0
4 years ago
Find the point below that lies on the line y-5=7(x-6).
MrMuchimi

Answer:

(6,5)

Step-by-step explanation:

The equation is in point slope form: y-y_1=m(x-x_1)

'm' is the slope.

(x1, y1) is the point used to create the equation.

The number 6 replaces the x1 spot.

The number 5 replaces the y1 spot.

So a point that lies on the line should be (6,5).

5 0
3 years ago
What is the slope? (10 points)
alukav5142 [94]
The answer is C 1/2 hope this helps :)
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3 years ago
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