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Marta_Voda [28]
3 years ago
7

84 is what percent of 105?

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

Answer:

The answer is 80 percent

saul85 [17]3 years ago
3 0

Answer:

80%

Step-by-step explanation:

84/105=0.8

0.8=80%

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The rate of change would be D. 4
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Step-by-step explanation:

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What are the answers for 7 and 8??? please help
wolverine [178]

Answer:

7.)

Therefore FT is 33 unit.

8.)

Therefore SU is 98 unit.

Step-by-step explanation:

7.)

Given:

ΔFUT ~ ΔFHG

FU = 39

FH = 130

FG = 110

To Find:

FT = ?

Solution:

ΔFUT ~ ΔFHG  ............Given

If two triangles are similar then their sides are in proportion.  

\dfrac{FU}{FH} =\dfrac{FT}{FG} \textrm{corresponding sides of similar triangles are in proportion}\\

Substituting the values we get

\dfrac{39}{130} =\dfrac{FT}{110}\\\\FT=\dfrac{110\times 39}{130}=33\\FT=33\ unit  

Therefore FT is 33 unit.

8.)

Given:

ΔSTU ~ ΔFED

ST= 63

FE = 9

FD = 14

To Find:

SU = ?

Solution:

ΔSTU ~ ΔFED  ............Given

If two triangles are similar then their sides are in proportion.  

\dfrac{ST}{FE} =\dfrac{SU}{FD} \textrm{corresponding sides of similar triangles are in proportion}\\

Substituting the values we get

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So when you are adding fractions how do you know when you need to simplify the numbers and how do you simplify?
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Let's look at an example.

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Before we can add, the denominators must be the same.

To get the denominators to be the same, we can...

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At this point, both fractions involve the denominator 48. We can add the fractions like so

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Add the numerators while keeping the denominator the same the entire time.

The last step is to reduce if possible. In this case, we can reduce. This is because 14 and 48 have the factor 2 in common. Divide each part by 2.

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The fraction 14/48 reduces to 7/24

Overall, 1/6 + 1/8 = 7/24

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