2 years ago

A model maker wants to make a model of a ship. He will use a scale of 1:50. The ship was 100ft long. 1 foot=0.3m

Mathematics

1 answer:

igomit [66]2 years ago

5 0

you are a girl or boy. #/

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When i was 18 years old, my sister was half my age. Now I am 82 years. How old is my sister now?

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Answer:

$41 \: \: \: years \: \: \: old$

Step-by-step explanation:

$me \: \: \: \: \: \: \: \: \: \: \: sis \\ 18 \: \: \: \: \: \: \: \: \: \: \: \: 9 \\ 82 \: \: \: \: \: \: \: \: \: \: \: x \\ \\ use \: \: cross \: \\ multipaction \\ \\ 18x = 82 \times 9 \\ 18x = 738 \\ \frac{18x}{18} = \frac{738}{18} \\ x = 41$

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3 years ago

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Zarrin [17]

The second option is the right one

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What is the percentage… b of sugar in the syrup made of 10 kg of water and 4 kg of sugar?

Artist 52 [7]

Answer:

Step-by-step explanation:

4 kg - weight of sugar

10 kg - mass of water

4kg + 10kg = 14kg - weight of the syrup

$\dfrac{4kg}{14kg}=\dfrac{2}{7}$

The sugar is 2/7 of the weight of the syrup.

Convert to the percentage:

$\dfrac{2}{7}=\dfrac{2}{7}\cdot100\%=\dfrac{200}{7}\%=28\dfrac{4}{7}\%\aaprox29\%$

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3 years ago

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Find the product of (–d + e)(4e + d). Which statements are true? Check all that apply.

yulyashka [42]

In equation, (-d + e)( 4e + d) will be (-4ed - d^2 + 4e^2 +ed ) to simplify we combine the terms with the same variables such as d^2, e^2 and ed. The equation becomes, 4e^2 - 3ed - d^2 . The product has 3 terms with a degree of 2. The statements that are true are B and E.

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Kevin buys four folding chlairs. Beach chair costs $13.50. the sales tax is 6.5%. what is the amount of sales tax for Kevin's pu

frozen [14]

Answer:

Amount of sales tax = $3.51

Step-by-step explanation:

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3 years ago