The wings of a ruby-throated hummingbird beat an average of 52 times per second. About how many times will it's wings beat in one minute?

There are 25 students performing in the holiday concert. Of the students, 11 are boys. The percentage of students that are boys are 44%

From the given information;

• In a holiday concert, there are 25  students participating actively in it.

• If 25 students are equivalent to 100 percent;

The percentage for one student will be:

= 4%

The percentage of 1 student = 4%.

Now, of the students, 11 are boys and we are to determine the percentage of students that are boys:

∴

The number of students that are boys = 11 × 4%

= 44%

Therefore, we can conclude that the number of students that are boys is 44%.

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Total students = 25

Boys = 11

Girls = 25-11 = 14

To find the percent of boys, you need to do:

11/25 * 100

1100/25 = 44

Therefore, 44% of boys are there in class.

to find how many dollars per hour, you must choose one ratio of dollars to hours

24:3

we want to get 3 to 1 so we must divide both numbers by 3

now our new ratio is

8:1

the unit rate is

$8 per hour

Answer:

Step-by-step explanation:

This car follows a line, hence its motion can be modeled by the Line equation.

In fact, we already have two points of the line, if we call the time in hours and the traveled distance in miles:

Point 1:

Since we are told the car's initial position is 300 miles in the time 0 h

Point 2:

Since we are told the car's final position is 180 miles after 3h

Let's find the Slope :

 This is the slope of the line

Now, the equation of the line is:

We already know the slope, now we have to find the intersection point with the y-axis () with any of the given points. Let's choose Point 1:

Isolating :

Then, the equation of the line is:

Answer:

y=-40x-300

Step-by-step explanation:

Multiply across and it will be 33/8

Now turn it into a mixed number that will be 4 1/8

Answer:4 1/8