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2 years ago

fifty-five percent of the pupils in a class are girls. What is the ratio of the number of boys in the class?

Mathematics

2 answers:

sweet [91]2 years ago

7 0

Answer:

45 boys

Step-by-step explanation:

55 + 45 = 100 so if 55% of the class is girls then the rest of the percentage of the class which is 45 should be boys

olga2289 [7]2 years ago

3 0

Answer:

45 boys

Step-by-step explanation:

55 + 45 = 100 so if 55% of the class is girls then the rest of the percentage of the class which is 45 should be boys

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OleMash [197]

Answer:

51.39 units³

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = area of base × height

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V = 5.71 × 9 = 51.39 units³

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3 years ago

Read 2 more answers

What is the equation of the line? Please help asap!!!! First Correct answer will get brainestttttt !!

faust18 [17]

Answer:

3y= -2x-6

Step-by-step explanation:

The two points on the line are (-3,0) and (0,-2)

so you first get the gradient;

gradient= change in y

change in x

= -2-0

0-(-3)

= -2

so the answer above is the gradient

then pick one point that you used to get the gradient with, so as for me I'll pick (-3,0) and then a general point which is always (x, y)

since you have the gradient you can easily get the equation by doing this

y-0. = -2

x-(-3). 3

then crossmultiply to get the equation of the line

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6 0

3 years ago

Noor brought 21 sheets of stickers. She gave 1/3 of a sheet to each of the 45 students at recess. She wants to give teachers 1 1

Tamiku [17]

Answer:

$\frac{3}{2}t+15\leq 21$

Step-by-step explanation:

Let t represent the number of teachers.

We have been given that Noor gave 1/3 of a sheet to each of the 45 students at recess.

Let us find the number of sheets given to students by Noor by multiplying the total number of students by the part of sheet given to each student.

$\text{Number of sheets given to 45 students}=45\times \frac{1}{3}$

$\text{Number of sheets given to 45 students}=15$

So, Noor gave 15 sheets to 45 students.

We have been given that Noor wants to give $1\frac{1}{2}=\frac{3}{2}$ sheet to each teachers, so the number of sheets given to t teachers will be $\frac{3}{2}t$ .

As Noor has bought 21 sheets, so the number of sheets given to students and t teachers will be less than or equal to 21.

We can represent this information in an inequality as:

$\frac{3}{2}t+15\leq 21$

Therefore, the inequality $\frac{3}{2}t+15\leq 21$ represents the number of teachers ,t, Noor could give sheets of stickers too.

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3 years ago

A puffin is flying at 29 feet above sea level. What integer represents the change in elevation, in feet, that it will have to fl

alexandr1967 [171]

Answer:

348

Step-by-step explanation:

4 0

3 years ago

Side XY of triangle XYZ is extended to point W, creating a linear pair with <WYZ and <XYZ. What is the value of x?

bulgar [2K]

Answer:

Step-by-step explanation:

I just did this and its right!

3 0

3 years ago

fifty-five percent of the pupils in a class are girls. What is the ratio of the number of boys in the class?​

fifty-five percent of the pupils in a class are girls. What is the ratio of the number of boys in the class?