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Aleks04 [339]
3 years ago
14

*math please help*

Mathematics
2 answers:
olga_2 [115]3 years ago
8 0
This percentage can be calculated as part / whole:
p =  \frac{900000000}{3500000000} \\ p = 0.257

Approximately 25.7 percent.
yaroslaw [1]3 years ago
4 0

If we are going to find the percentage of a total body that a specific group of something makes up, we are going to want to divide the frequency of the specific body by the frequency of the total body. Essentially, divide the specific number by the total number. After you have done this, multiply by 100 and add a % sign.


In this case, the specific number would be 900 million, since that is representing the frequency of the smaller group. The total number would be 3.5 billion. Dividing will give us:

\dfrac{900,000,000}{3,500,000,000} = \dfrac{9}{35}


Multiplying by 100 will give us:

\dfrac{9}{35} \cdot 100 = \dfrac{900}{35} \approx 25.7 \,\%


Our answer is 25.7%.

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A goat and a cow together weigh 190 kg 640 g. The weight of the goat is 59 kg 720 g. Find the weight of the cow
AVprozaik [17]

Answer: 130 kg 920 g

Step-by-step explanation:

Given

The weight of the goat is 59 kg  720 g

The combined weight of goat and cow is 190 kg 640 g

Suppose, the weight of the cow is x kg

We know, 1 kg=1000 g

Converting weight into kg

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=59+0.720\\=59.720\ kg

Total weight

=190+0.640\\=190.640\ kg

Then, the cow weight is given by

\Rightarrow 190.640-59.720\\\Rightarrow 130.920\ kg\ \text{or}\ 130\ kg\ 920\ g

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