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Rina8888 [55]
3 years ago
5

Solve for x. x + 3 = 10

Mathematics
2 answers:
alex41 [277]3 years ago
6 0

Answer:

x = 7

Step-by-step explanation:

x + 3 = 10

You do opposite operations so you subtract 3 by 3 to cancel it out then subtract 3 - 10 = 7. Since there is no other numbers behind the equal sign you divide \frac{7}{x} or just written as 7

ICE Princess25 [194]3 years ago
5 0

Answer:x=7

Step-by-step explanation:

X+3=10

-3 -3

X=7

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8 0
3 years ago
Nigel went to a sandwich shop for lunch. The menu to the above shows the types of cheeses and meats available. If Nigel chooses
bogdanovich [222]

Answer:

8

Step-by-step explanation:

There are 2 cheeses, american and cheddar, and 4 meats, ham, bologna, turkey, and chicken. For every cheese, there are 4 options of meat. So then there are 2*4=8 sandwiches. If you are familliar with this concept, just multiply 2 and 4.

6 0
2 years ago
Read 2 more answers
What is the sale price for an item with an original price of 13.99 after applying a discount of 45%?
Alekssandra [29.7K]

Answer:

7.69

Step-by-step explanation:

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3 0
3 years ago
En un examen calificado del 0 al 10, 3 personas obtuvieron 5 de nota, 5 personas obtuvieron 4 de nota, y 2 personas obtuvieron 3
Nastasia [14]

Answer:

Media = 4.1

Mediana = 4

Moda = 4

Step-by-step explanation:

3 personas obtuvieron 5 puntos

5 personas obtuvieron 4 puntos

2 personas lograron 3 puntos

a. La media se da como:

Media = suma total de marcas / número de personas

Por lo tanto, la media será:

M = \frac{((3 * 5) + (5 * 4) + (2 * 3)}{10}\\ \\M = \frac{15 + 20 + 6}{10} \\\\M = \frac{41}{10}\\ \\M = 4.1

b. Para obtener la mediana, tenemos que organizar los términos en consecuencia y encontrar el número en el medio.

3, 3, 4, 4, 4, 4, 4, 5, 5, 5

Como no hay un número único en el medio, la mediana es:

(4 + 4) / 2 = 8/2 = 4

c. La moda es el número que aparece más, y eso es 4

8 0
3 years ago
2 taps A and B can fill a swimming pool in 3 hours. If turned on alone, it takes tap A 5 hours less than tap B to fill the same
vazorg [7]

Answer:

Tap A will take 2 hours and tap B will take 6 hours to fill the tank when turned on alone.

Step-by-step explanation:

Let tap B fills the pool alone in the time = x hours

So in one hour part of pool will be filled = \frac{1}{x}

Another tap A when turned on, it takes time to fill the pool = x-5 hours

So in one hour part of the same pool filled = \frac{1}{x-5}

Now both the taps A and B are turned on then time taken to fill the pool = 3 hours.

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Now we form an equation

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x² - 8x + 12 = 0

x² - 6x - 2x + 12 = 0

x(x - 6) - 2(x - 6) = 0

(x -2)(x - 6) = 0

x = 2, 6 hours

We will take higher value of x as x = 6 hours for tap B.

Time taken by tap A = 6 - 4 = 2 hours.

Therefore, Tap A will take 2 hours and tap B will take 6 hours to fill the tank when turned on alone.

4 0
3 years ago
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