Hello,
8*√3 is the side.
The height is √((8√3)²-(4√3)²)=√(64*3-16*3)=12
Area of the triangle=8*√3*12/2=48√3≈83
All you need to do is divide 48 (total number of pounds) by 0.8 (the amount each package holds.
Ex. 48/0.8= 60
Answer:
315 chocolate
Step-by-step explanation:
Let Sam's chocolate be S
Let Clariss's chocolate be C
When Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam.
This can be written as:
C = 5S
The sum of their chocolate is 504 i.e
S + C = 504
Now, let us determine the chocolate of Clarissa after receiving 105 chocolate from Sam. This can be obtained as follow:
S + C = 504
But: C = 5S
S + 5S = 504
6S = 504
Divide both side by 6
S = 504/6
S = 84.
C = 5S = 5 x 84 = 420
Therefore, Clarissa have 420 chocolate after receiving 105 chocolate from Sam.
Now, to know the amount of chocolate that Clarissa has at first, we simply subtract 105 from the present amount that Clarissa have. This is illustrated below:
Amount of chocolate that Clarissa has a first = 420 – 105 = 315
Therefore, Clarissa had 315 chocolate at first.
New class average: 83
The original average: 82
And if there are 12 students, the total sum of all 12 tests should be
82 x 12 = 984
Then to find the average of the new tests
Add 12 points to the original sum
984+12 = 996
Then divide by 12 to find the new average
996/12 = 83
It would be 61180 because u need to multiply 3059x20 =61180
