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harkovskaia [24]
2 years ago
6

at an end - of - term party , 12 chocolate cakes are shared equally between 40 children. how much does each child get? give your

answer in decimal fractions
Mathematics
1 answer:
GREYUIT [131]2 years ago
8 0
.3/1 or 30% also could be written as 3/10
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Literal equation S=2 (lw+lh+wh) solve for w
olga_2 [115]
S=2\left( lw+lh+wh \right) \\ \\ S=2\left\{ w\left( l+h \right) +lh \right\} \\ \\ \frac { 1 }{ 2 } \cdot S=2\left\{ w\left( l+h \right) +lh \right\} \cdot \frac { 1 }{ 2 } \\ \\ \frac { S }{ 2 } =w\left( l+h \right) +lh\\ \\ w\left( l+h \right) =\frac { S }{ 2 } -lh\\ \\ \frac { 1 }{ \left( l+h \right)  } \cdot w\cdot \left( l+h \right) =\frac { 1 }{ \left( l+h \right)  } \left( \frac { S }{ 2 } -lh \right)

\\ \\ w=\frac { 1 }{ \left( l+h \right)  } \left( \frac { S }{ 2 } -lh \right)
3 0
3 years ago
What is the area of ​​a triangle ABC with AB=AC=5cm and BC=6cm?
Vika [28.1K]

Answer: 12 cm^2

Step-by-step explanation:

BC ==> Base of triangle

Divide the triangle in two parts:

BC/2=BC'

6/2=BC'

BC'=3

Distance formula: a^2+b^2=c^2

c^2-a^2=b^2

5^2-3^2=b^2

25-9=b^2

b^2=16

b=4 ==> height of triangle

Area of triangle=A. b=base. h=height

A=1/2 * b * h=

A=1/2 * 6 * 4

A=1/2 * 24

A=12 cm^2

8 0
1 year ago
Determine whether the conclusion is valid. If not, identify the additional information needed to make it valid.
sashaice [31]

Answer:

g uljhi to I am Vishesh films are the charges and

8 0
3 years ago
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A speed limit of 100 kilometers per hour is approximately equal to 62mph. write an equation relating kilometers per hour to mile
aleksandr82 [10.1K]

Answer:

3

Step-by-step explanation:

IT DOES it

4 0
2 years ago
HELPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!! in assigned photo is the question! doesnt need to be descriptive i just need the answer ple
aev [14]

Answer: 11

Step-by-step explanation:

Since the smaller triangle is half of the larger triangle

5.5×2=11

8 0
1 year ago
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