there are 28 tables for customers at mesa grill resturant. the tablesnare either two-seat tables or four-seat tables. when all tables are full, there will be 90 customers in the restaurant. how many two-seat tables are at the restaurant

Answers

Answer 1

Explanation :-

Let's assume –

Number of two-seat tables be "x"

[tex]\qquad[/tex] According to the question :-

[tex]\qquad \pmb{\sf\longrightarrow 4 \times (28−x)+2 \times x=90}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow 112−4x+2x=90}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow 112−2x=90}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow −2x=90−112}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow −2x=−22}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow 2 x=22}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow x= \cancel{\dfrac{22}{2}}}[/tex]

[tex]\qquad \longrightarrow {\pink{\underline{\underline{\pmb{\sf{ x= 11}}}}}}[/tex]

Therefore

Number of two-seat tables are 11.

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Answer 2

Answer: 11

Step-by-step explanation:

This is a problem of solving word problems using systems of equations.

Let's denote 2-seat tables by x and 4-seat tables by y. Therefore, their sum will be the total number of tables, which is 28. So, x + y = 28.

Now, let's concentrate on the number of customers. It says that 'when all tables are full, there will be 90 customers in the restaurant'. Therefore if we seat 2 people on each 2-seat table(x), their total number will be 2x and if we seat 4 people on each 4-seat number(y), their total number will be 4y. Hence, 2x + 3y = 90.

Now, we have a system with two equations:

[tex]\left \{ {{x + y = 28} \atop {2x + 4y = 90}} \right.[/tex]

Multiply the first line by -4.

[tex]\left \{ {{-4x -4y = -112} \atop {2x + 4y = 90}} \right.[/tex]

Now, by adding up these two equations, we get the following:

-2x = -22

x = 11

This means that the restaurant has 11 two-seat tables.


Related Questions

There are 32 students in 6A class and 36 students in 6B class. If Mr. Deveney wants to have the same amount of children in each group, what would be the largest group size that would work for both classes?

A) 32
B) 68
C) 2
D) 4

Answers

Answer:

D) 4

Step-by-step explanation:

32 can be split into

8 groups of 4

36 can be split into

9 groups of 4

Students can ride in a van how many vans are needed for 29 students

Answers

Answer:

29

Step-by-step explanation:

Students can ride in a van

vans are needed for 29 students = 29

What is the equation for the line that is perpendicular to y= 3/7x + 1, through (-9,19)

Answers

Step-by-step explanation:

I hope this helps you!!!

What is the value of 3ab+5b-6 when a=1 and b = 3

Answers

The value of 3ab+5b-5 is 18

please help me? im not understanding this question at all.

Answers

Answer:

well it looks like as each week is going by the puppy is gaining less weight cause at first 5 is added and then 4 so maybe the next week 3 is added

Answer:

Yes, the relationship is proportional.

Step-by-step explanation:

So if you don't understand what proportional means, it means corresponding, the same, equal.

So when you look at a graph like this then ask yourself this, "is x a multiple of y?"

For example: Is 2 a multiple of 4? Yes! It is! That makes it proportional.

Is 3 a multiple of 9? Yes it is! 3, 6, 9.

Is 4 a multiple of 12? It is 4, 8, 12

5
What scale factor would increase the
size of the rectangle so that it has an
area of 96 cm??
2cm
3cm

Answers

Answer:

4

Step-by-step explanation:

If you increase the scale factor by 4, the sides become:

L= 2×4 = 8

W= 3×4 = 12

Now to find the new area:

8 × 12 = 96cm^2

So, a scale factor of 4 would give the rectangle a scale factor of 96.

Hope this helps and have a nice day!

Divide.

(−1/6)÷(−5/6)

What is the quotient?

Enter your answer as a simplified fraction in the box. please thank you!!!

Answers

Answer:

(−1/6)÷(−5/6) which when you cancel gets 0.2 or also 1/5.

Step-by-step explanation:

Wich equation has infinitely many solutions?
a)-3x+2+2x=5x+2-6x
b)-3x-2+6x=3x+4-2
c)-4x-2+3x=-1x+5
d)6x+3x-54=-9x-54

Answers

Answer:

a)-3x+2+2x=5x+2-6x

Step-by-step explanation:

Have a great day :)

Name the scale of the number line shown.

Answers

The scale of the given line will be 4 which is the difference in the length between the two successive numbers.

What is Number Line?

In math, a number line can be defined as a straight line with numbers arranged at equal segments or intervals throughout. A number line is typically shown horizontally and can be extended indefinitely in any direction.

The number line is given in the question.

The scale of the number line is the difference in the length between the two successive numbers.

According to the given number line,

Here numbers are 9, 13, 17, 21, 25, 29

So the difference in the length between the two successive numbers

⇒ 13 - 9 = 17 - 13 = 21 - 17 = 25 -21 = 29 - 25 = 4

Therefore, the scale of the given line will be 4.

Learn more about the number line here:

brainly.com/question/17617832

#SPJ1

Determine whether x-1 is a factor of the polynomial f(x)= x^3 + 2x^2-3

Answers

If x-1 is a factor f(1)=0

[tex]\\ \sf\longmapsto f(1)=0[/tex]

[tex]\\ \sf\longmapsto 1^3+2(1)^2-3=0[/tex]

[tex]\\ \sf\longmapsto 1+2-3=0[/tex]

[tex]\\ \sf\longmapsto 3-3=0[/tex]

[tex]\\ \sf\longmapsto 0=0[/tex]

Verified

what is 8 x 100 + 4 x 10 + 7 x 1/10 + 3 x 1/100 in standard form

Answers

Answer:

Step-by-step explanat:

8*100 =800

4*100=400

7*1/10=0.7

3*1/100=0.03

800+400+0.7+0.03= 1200.73

0.21 multiplied by 16

Answers

Answer:

3.36

Step-by-step explanation:

0.21 times 16 is 3.36

Answer:3.36

Step-by-step explanation:

A high school teacher teaches three classes per day. Her first class has double the number of students as her second class, while her third class has 13 more students than her second class. In total, she teaches 53 students. The equation 2x + x + (x +13) = 53 represents this scenario, where x is the number of students
in her second class.
How many students are in her second class?

Answers

Answer: 10

Step-by-step explanation: first subtract 13 from 53 which gives you 40 then divide 40 by 4 which gives you 10 but because your first class is double more than your second class it has 20 students and your second class has 10 students and because you have to add that 13 back in your third class has 23 students

I need the answer please I’ll give Brainliest

Answers

The answer is x=1/5
Explanation:
3/2x-6x/5x =3/2
3/10x= 3/2
10x=2
X=1/5

Just trying to see if my answer is correct if not please correct me <3​

Answers

Answer:

Correct Answer

Step-by-step explanation:

The step that you use is right.

Help Asap Help for Brainlist

Answers

Answer: i dont under stand

Step-by-step explanation:

Please help I will mark brainliest!

Answers

Answer:

I am very sorry I dont know

Step-by-step explanation:

2.356
Expanded Form


Word Form




24.09
Expanded Form


Word Form

Answers

Answer:

2.356 =

 2  

+   0.3

+   0.05

+   0.006

two and three hundred fifty-six thousandths

24.09 =

 20  

+ 4  

+   0.0

+   0.09

twenty-four and nine hundredths

Step-by-step explanation:

Your welcome please give a thanks and 5 stars

Answer:

2.356

Expanded Form - 2 + 0.3 + 0.05 + 0.006

Word Form - two and three hundred fifty-six thousandths

24.09

Expanded Form - 20 + 4 + 0.09

Word Form - twenty-four and nine hundredths

Hope it helped!

On Saturday, Lauren ran 3.15 miles during her track event. Then she ran 0.68 miles home after the event.

How many miles did Lauren run that day?

Answers

Answer:

3.83

Step-by-step explanation:

So what they’re finding out is how much miles did she ran, so we’re gonna ADD.

> 3.15 + 0.68 = 3.83

So she would’ve ran 3.83 miles that day.

Your answer is 3.83 if Lauren ran 3.15 miles and then ran .68 miles then to find the total we would have to add, 3.15+.68 is 3.83
Brainiest appreciated.

37 1/4 x 24

Show work please

Answers

Answer:

894

Step-by-step explanation:

Because calculator doesn’t lie

HELP ASAP PLEASE!!! 20 POINTS!!!! NO LINKS ALLOW!!!

For both Bruce and Felicia, graph a line to represent y, the area each person covered using x tiles.

Answers

Answer:

Here's the answer in the attachment

hope this helps, you're welcome

write an equation that passes through (2,4) is parallel to the line 3x-2y=-10

Answers

Answer:

y = 3x/2 + 3

Step-by-step explanation:

First let's solve for y in the given equation

Subtract 3x from both sides

3x - 2y = -10

- 3x         - 3x

-2y = -3x - 10

Divde both sides by -2

-2y/-2 = (-3x - 10)/-2

y = 3x/2 + 5

The slop of the parallel equation will have to be 3/2

y = 3x/2 + b

Plug in the given coordinates

4 = 3(2)/2 + b

4 = 1 + b

Subtract 1 from both sides

4 = 1 + b

- 1.  - 1

b = 3

y = 3x/2 + 3

Please find the equation of the quadratic

Answers

Answer:

y = 4(x - 3)² - 5

Step-by-step explanation:

Given the vertex, (3, -5), and the other point, (4, -1):

Substitute these values into the vertex form of the quadratic equation:

y = a(x - h)² + k

where:

(h, k) = vertex

a = determines the direction of which the graph opens (if a > 1, the graph opens up; a < 1, the graph opens down). The value of a also determines the width of the parabola.  If 0 < a < 1, the graph will be wide; if a > 1, the graph will be narrow.

h = indicates a horizontal translation.

k = indicates a vertical translation.

Next, substitute the values of the vertex, (3, -5), and the other given point, (4, -1) into the vertex form and solve for the value of a:

y = a(x - h)² + k

-1 = a(4 - 3)² - 5

-1 = a( 1 )² - 5

-1 + 5 = a1 - 5 + 5

4 = a

Therefore, the equation of the given graph is: y = 4(x - 3)² - 5.  

Note:

If the  equation needs to be in standard form, ax² + bx + c, simply expand the binomial factors in the vertex form, and combine like terms.  Doing so will result in the following standard form: y = 4x² - 24x + 31.

What is the number that makes the ratio equivalent to 3:6?

Answers

Answer:

I think 3/6

Step-by-step explanation:

3:6=3/6

Find the next two terms. 81, 27, 9, ?, ?

Answers

Answer:

3 and 1

Step-by-step explanation:

Similarly each term is 1/3 of the previous term. This is a geometric sequence.

9/3 = 3

3/3 =1

Can someone help me with this

Answers

Answer:

I can't see the sign between 2 and (1/3)^3 in the last question, it's a bit blurry. You should send it again.

Step-by-step explanation:

please mark BRAINLIEST

asap please question 444444444j if jritjti rn fjjf​

Answers

Answer:

(0.5,-3.5)

Step-by-step explanation:

Tameka owes 4 of her friends $20 each. How much money does tameka owe in total ?

Answers

Answer:

80

Step-by-step explanation:

Answer:

80$

Step-by-step explanation:

1 friend=20$

20$+20$+20$+20$

AKA 20x4

=80

Your round-trip drive to work is 4310 miles. How many miles do you drive to and from work in 3 days?

Answers

Step-by-step explanation:

12930 miles add 4310 3 times

Answer:

Step-by-step explanation:

Gold weighs 19.32 grams per cubic centimeter. If a gold coin contains 2.4 cubic centimeters
of gold, how much does it weigh in grams? Show your work.

Answers

Answer:

46.368 grams

Step-by-step explanation:

19.32g per 1 cubic cm

?g per 2.4 cubic cm

19.32 x 2.4 = 46.36800

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