What is the interquartile of 44, 51, 56, 73, 81?
1 answer:
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Answer:
252 students at the party like to dance
Step-by-step explanation:
Given:
60% of the students are girls
40% of the students like to dance
20 more boy students
Percentage of the girls in the party = 58%
To Find:
How many students now at the party like to dance=?
Solution:
Let the number of girls be g.
Let the number of total people originally be t.
We know that
----------------------------------(1)
We also know that
-----------------------------(2)
We now have a system of equation from (1) and (2)
3t=5g
------------------------(3)
50g=29t+580------------------------(4)
Substituting 3 in 4, we get
t =589
So originally there was 580 students
In this 580 students 40% liked to dance
Then the number of students liked to dance =
=>
=>
=>
=> 232
We also know that with these people, 20 boys joined, all of whom like to dance.
Now the number of students like to dance = 232+20 = 252 students
Answer:
meter
Step-by-step explanation:
We have to write first what is known from the information.
Let's say, length is L, width is W, and height is H
1. The length of the box is 2 1/2 m = 2,5 m = 5/2 m, it is 1 9/16 = 25/16 times it's width (L). So we have the equation :
L ≡
Then we find the W. From the fraction above, we found W equals to meter
2. What is the height of the box, if its volume is 12 3/4 m^3 = 51/4 m^3
Formula of a volume is :
The area wide times the height
In this problem, the equation is :
L × W × H = Volume
Insert the numbers,
×
× H =
From the fraction above, we can find that H equals to
meter