Ask question

Ask question

All categories

3 years ago

14

the mean weight of 8 girls is 55kg and the mean weight of a group of boys if 52kg. the mean weight of all the students is 53.2kg

. how many boys are there?

1 answer:

Amanda [17]3 years ago

6 0

Add 55kg and 52 kg and 53.2 kg and divide by 8 and that will give you your answer

You might be interested in

A circular garden with a radius of 8 feet is surrounded by a circular path with a width of 3 feet. What is the approximate area

ziro4ka [17]

Answer:

9.42?

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Which one is correct? Please hurry <3

Phoenix [80]

Answer:

$4.59

Step-by-step explanation:

20 - 1.20 - 5.03 = 13.77

13.77/3 = 4.59

4 0

3 years ago

F(x) = x + 7<br> and<br> g(x) = x2<br> What is g( f(-9))

Tanya [424]

Answer:

4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please is urgent!!!

Sophie [7]

Answer:

70.6x 10-⁵ is answer of first

4 0

3 years ago

By what number should I multiply 1 1/4 by to obtain 3/4(fractions)

Reptile [31]

1 1/4x = 3/4
5/4x = 3/4
x = (3/4) / (5/4)
x = 3/4 * 4/5
x = 12/20 which reduces to 3/5

check..
1 1/4 * 3/5 =
5/4 * 3/5 =
15/20 reduces to 3/4

so u would multiply 1 1/4 by 3/5 to get 3/4

7 0

3 years ago

Read 2 more answers