All categories

3 years ago

How to do this question plz

Mathematics

1 answer:

dimaraw [331]3 years ago

6 0

Answer:

126 people

Step-by-step explanation:

Given that, ratio of people who preferred tea to those who preferred coffee = 9:5

Let number of people who preferred coffee = x

Number of people who preferred tea = x + 36

Total number of people in survey = x + (x+36)

Ratio of people who preferred tea to those who preferred coffee = (x + 36)/x = 9/5

Cross multiply to solve for x

5(x + 36) = x(9)

5x + 180 = 9x

Subtract 5x from both sides

180 = 9x - 5x

180 = 4x

Divide both sides by 4

180/4 = x

45 = x

x = 45

Number of people who preferred coffee = x = 45

Number of people who preferred tea = x + 36 = 45 + 36 = 81

Total number of people in the survey = x + (x + 36) = 45 + 81 = 126 people

You might be interested in

3. A sign company is building a sign with the dimensions shown. What is the area, in square feet, of the sign? Round to the near

Aleks04 [339]

Answer:

84.87sq ft

Step-by-step explanation:

Let ABC be the triangle and AD be the perpendicular on BC such that BD=DC=7ft.

Now, it is known that $\frac{DC}{AC}=cos60^{0}$

$AC=\frac{7}{\frac{1}{2}}$

$AC=7ft$

Now, in triangle ADC, we have

$(AC)^{2}=(AD)^{2}+(DC)^{2}$

$(14)^{2}=(AD)^{2}+(7)^{2}$

$196-49=(AD)^{2}$

$AD=12.12ft$

Now, area of the triangle= $\frac{1}{2}{\times}b{\times}h$

= $\frac{1}{2}{\times}14{\times}12.12$

= $84.87sq ft$

Thus, area of the building is 84.87sq ft.

8 0

2 years ago

Round 4.776 to the nearest hundred

bagirrra123 [75]

4.78 is 4.776 to the nearest hundred

6 0

2 years ago

Please answer correctly :>>>>

alexandr1967 [171]

Answer: I’m not rlly sure

Step-by-step explanation: not sure

4 0

2 years ago

The base of this solid crate has an area of 6 square meters. The

Natali5045456 [20]

if the area is 6 that means the square is 2 x 3. 2 x 3 x 4. that equals 24.

let me know how you did !

6 0

2 years ago

Please help with question

Step2247 [10]

To solve this problem you must apply the proccedure below:

1. Let's call:

x: hot dogs.
y: hamburguers.

2. Then, you must make a system of equations, as below:

5x+4y=12.25 (i)
4x+5y=12.50 (ii)

3. Now, you can solve the system of equation as below:

5x+4y=12.25
x=(12.25-4y)/5

4x+5y=12.50
4((12.25-4y)/5)+5y=12.50
y=1.5

4x+5y=12.50
4x+5(1.5)=12.50
x=1.25

4. Therefore, the answer is:

The cost of one hot dog is $1.25 and the cost of one hamburguer is $1.50

8 0

2 years ago

How to do this question plz ​

How to do this question plz