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kiruha [24]
3 years ago
11

You have a coupon for an additional 25% off the price of any sale item at a store. The store has put robotics kit on sale for 15

% off the original price of $40. What is the price of the robotics kit after both discounts?
Mathematics
1 answer:
insens350 [35]3 years ago
4 0

Answer:

25.50 i believe

Step-by-step explanation:

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Imagina que vas a un partido de béisbol con tus amigos, y tienen hambre. El costo de dos botellas de agua y 3 bolsas de palomita
Rudik [331]

Answer:

El costo de una botella de agua es de $10

El costo de una bolsa de palomitas de maíz es de $15.

Step-by-step explanation:

Los parámetros dados son;

El costo de dos botellas de agua y 3 bolsas de palomitas de maíz = $65

El costo de 4 botellas de agua y 1 bolsa de palomitas de maíz = $55

Donde x = El costo de una botella de agua ey = El costo de una bolsa de palomitas de maíz, tenemos;

2 × x + 3 × y = 65 ... (1)

4 × x + y = 55 ... (2)

Haciendo y el tema de ambas ecuaciones, tenemos;

Para la ecuación (1), tenemos;

2 · x + 3 · y = 65

3 · y = 65 - 2 · x

y = 65/3 - 2/3 · x

Para la ecuación (2), tenemos;

4 · x + y = 55

y = 55 - 4 · x

Igualando ambos valores de y para encontrar la solución común, tenemos;

65/3 - 2/3 · x = 55 - 4 · x

4 · x - 2/3 · x = 55 - 65/3

10 · x / 3 = 100/3

∴ 10 · x = 100

x = 100/10 = 10

x = 10

El costo de una botella de agua = x = $10

y = 55 - 4 · x = 55 - 4 × 10 = 55 - 40 = 15

y = 15

El costo de una bolsa de palomitas de maíz = y = $15

4 0
3 years ago
Please help!!<br> Picture shown!
Anestetic [448]

Answer:

3x - 6y = -12

x - 2y = -8

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2 years ago
Forty tickets are sold for a raffle with two prizes. You buy two tickets. What is the probability that you will win both prizes?
Rina8888 [55]
Well, the first one is 2/40=1/20. The 2nd one is 1/39. You multiply these to get 1/780.
6 0
3 years ago
solve 49x + 9 = 49x + 83. write two equations in one variable that have the same number of solutions as this equation.
Sever21 [200]

Answer:

It has infinity solutions.

7 0
3 years ago
How many solutions can be found for the linear equation?
prohojiy [21]

Answer:

there are 3 solutions

Step-by-step explanation:

you do it in the correct order

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