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3 years ago

Are you good at math then here

Mathematics

1 answer:

Nikolay [14]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

The term -2t suggests that there are "t" of something that costs $2, or there are 2 of something that costs "t" dollars. The options marked include both interpretations.

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La dirección del Colegio Montes y los padres de familia están organizando un viaje cultural a Guanajuato para los alumnos de seg

notsponge [240]

Answer:

x + y = 47 (eqn 1)

x + 2y = 79 (eqn 2)

Solving the simultaneous equation,

The hotel has 15 single rooms and 32 double rooms.

Step-by-step explanation:

English Translation

The management of Colegio Montes and the parents are organizing a cultural trip to Guanajuato for second grade students and their teachers. Students will sleep in double rooms and teachers in singles. The hotel has double rooms (2 beds) and single rooms (1 bed), totaling 47 rooms and 79 beds. To confirm if they can be accommodated, they want to know how many rooms there are of each type. If "x" denotes single rooms and "y" denotes double rooms, Write the system of equations that represents the situation: Equation that represents the number of rooms (1) Equation that represents the number of beds (2)

Solution

The number of single rooms = x

The number of double rooms = y

The number of beds in single rooms = x

The number of beds in double rooms = 2y

Total number of rooms = 47

Total number of beds = 79

Sum of single and double rooms = Total number of rooms

x + y = 47 (eqn 1)

Sum of the beds in the single rooms and the beds in the double rooms = Total number of beds

x + 2y = 79 (eqn 2)

Writing the equations together

x + y = 47 (eqn 1)

x + 2y = 79 (eqn 2)

Solving the equations simultaneously,

x = 15, y = 32

Hence, the hotel has 15 single rooms and 32 double rooms.

Hope this Helps!!!

6 0

2 years ago

How do i solve for the x????

Tpy6a [65]

You could try and multiply I believe so .

5 0

2 years ago

Read 2 more answers

What is the answer to -3(x+4)+15=6-4x

vredina [299]

The answer is -12

Remember pemdas

5 0

2 years ago

Find the equation of a line that contains the points (0,0) and (6,−7). Write the equation in slope-intercept form, using fractio

shtirl [24]

Use the slope formula below:

$\large \boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }$

To form an equation of a line - we need to find a slope and the y-intercept from y = mx+b. We are given two points which we can substitute in the formula.

$\large{m = \frac{0 - ( - 7)}{0 - 6} } \\ \large{m = \frac{0 + 7}{ - 6} \longrightarrow \frac{7}{ - 6} } \\ \large \boxed{m = - \frac{7}{6} }$

We have finally got the slope. Next is to find the y-intercept. First we rewrite the equation of y = mx+b by substituting the slope.

$\large \boxed{y = mx + b}$

The equation above is the slope-intercept form. Substitute m = -7/6 in the equation.

$\large{y = - \frac{7}{6} x + b}$

Since the graph passes through (0,0) which is an origin point. In y = mx+b if the graph passes through origin point, that means the b-value is 0. Therefore:

$\large \boxed{y = - \frac{7}{6} + 0 \longrightarrow y = - \frac{7}{6} x}$

Answer

y = -7x/6

Hope this helps and let me know if you have any doubts! Good luck on your assignment!

3 0

3 years ago

Use a special-product rule to factor the perfect-square trinomial. 81y^2+ 126y + 49

Ivahew [28]

Answer:

The perfect -square trinomial

(9y+7)²

Step-by-step explanation:

Explanation:-

Given polynomial equation

81 y² + 126 y +49

⇒ 9² y² + 2(9)(7)y + 7²

⇒ (9y)² + 2(9)(7)y +7²

we will use formula

(a+b)² = a² + 2ab +b²

⇒ (9y+7)²

Final answer:-

The perfect -square trinomial

(9y+7)²

7 0

2 years ago