To which subset numbers does the following number belong?

At a football stadium, 4% of the fans in attendance were teenagers. If there were 120 teenagers at the football stadium, what wa

GuDViN [60]

Answer:

3000 people

Step-by-step explanation:

4% teenagers --> 120 teenagers were there

120/4 means 1% so 30 is 1%

1% times 100 is 100% so 30 times 100 equals 100% so 3000 is 100% of the people at the stadium

7 0

3 years ago

Read 2 more answers

Jason had three more than four times the amount of money that Jeff has. Together they have $72. How much money does each person

adelina 88 [10]

Answer:

Jason has $58.20 and Jeff has $13.80.

Step-by-step explanation:

Let x represent the amount of money Jason has, and y represent the amount of money Jeff has.

We know that together they have $72. So, we can write the following equation:

$x+y=72$

We know that Jason has three <em>more</em> than four <em>times</em> the amount of money Jeff has. So:

$x=3+4y$

This is a system of equations. We can solve it by using substitution. Let's substitute the second equation into the first. This yields:

$(3+4y)+y=72$

Combine like terms:

$5y+3=72$

Subtract 3 from both sides:

$5y=69$

Divide both sides by 5:

$y=69/5=\$13.80$

So, Jeff has $13.80

We know that Jason has three more than four times the amount of money Jeff has.

Therefore, Jason has:

$x=13.8(4)+3$

Multiply and add:

$x=\$58.20$

So, Jason has $58.20 and Jeff has $13.80.

And we're done!

7 0

3 years ago

A machine lifts up containers of coal from the mine and lowers empty containers down. The machine uses an electric motor connect

Shkiper50 [21]

Answer:

The maximum power available to the motor is 2.4 MW

Step-by-step explanation:

The power of a circuit that has a current, I, and a voltage, V, is given by the relation

Electrical power, P = I²R = I× I×R = I × V

Therefore given that the parameters are;

Voltage in the d.c. power supply = 600 V d.c.

Maximum current in the motor = 4000 A

Therefore, we can find the power as follows;

Maximum motor power = Voltage × Current

The maximum motor power, P available = 600 V × 4000 A = 2400000 W which on converting to MW becomes;

The maximum power available to the motor , P = 2.4 MW.

4 0

3 years ago

A survey was given to people who own a certain type of car. What percent of the people surveyed were completely satisfied with t

suter [353]

The blue one completely satisfied

8 0

3 years ago

Luna ray has 1 orange pick for every 2 green picks.How many green picks does Luna have if she has 12 total picks?

Lana71 [14]

Answer:

8 green picks

Step-by-step explanation:

Since this problem is a ratio that also gives a total, setting up equivalent ratios in a table with the total would be a good way to find the answer. Since there is 1 orange pick for every 2 green picks and there are a total of 12 picks, we can set up the following:

Orange 1 2 3 4 5

Green 2 4 6 8 10

Total 3 6 9 12 15

You can see from the table, that when there are 12 total picks, 4 of them are orange and 8 of them are green.

6 0

3 years ago