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2 years ago

In a class of 28 students, 11 have a brother and 9 have a sister. There are 2 students

Mathematics

2 answers:

zhannawk [14.2K]2 years ago

8 0

Answer:

Step-by-step explanation:

well since only 2 students have both a brother and a sister it would be 2/28

which as a percentage is 0.07142857142 × 100 = 7.14285714286

Zepler [3.9K]2 years ago

3 0

Answer:

x=3

Step-by-step explanation:

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The dual bar chart shows the hair colour of boys and girls in a year group. How many students are in the year group?

notka56 [123]

Answer:

102

Step-by-step explanation:

24+12+5+17+6+19+4+15=102

5 0

3 years ago

To join a Yoga club there is a $100 annual fee and a $5 fee for each class you attend. Identify each of the following:

d1i1m1o1n [39]

Answer

m=5

x=100

so it will be y=5x+100

Step-by-step explanation:

4 0

2 years ago

377. Dawn wants to compare the volume of a basketball with the

olchik [2.2K]

Answer:

$V = \frac{4}{3} \pi R^{3}$ and

$v = \frac{4}{3} \pi r^{3}$

Step-by-step explanation:

Dawn wants to compare the volume of a basketball with the volume of a tennis ball.

Now, if the radius of the basketball is R and that of the tennis ball is r, then the formula that can be used to determine the volume of each ball will be

$V = \frac{4}{3} \pi R^{3}$ and

$v = \frac{4}{3} \pi r^{3}$

Now, dividing V by v we can compare the volume of the basketball and the tennis ball. (Answer)

3 0

3 years ago

Round 715 to the nearest the ten

Mariana [72]

Here's a good rhyming rule to keep in mind.

Zero to four, you get no more.

Five to nine, move up one time.

With this rule you can see that there is a 5 at the end, therefor you should round up. Your number is 720.

8 0

3 years ago

Read 2 more answers

Help me please thank you

lilavasa [31]

Answer:

22 m^2

Step-by-step explanation:

The area of the bottom rectangle is A = l*w

The length is 8 and width is 2

A = 8*2 =16

The area of the top rectangle is A = l*w

The length is 3 and width is 2

A = 3*2 =6

Adding the areas together

A = 16+6 = 22

3 0

2 years ago