2 years ago

Write 640 g as a fraction of 4.8 kg. Give your answer in its simplest form,

Mathematics

1 answer:

vitfil [10]2 years ago

7 0

Answer:

Step-by-step explanation:

640g=640g

4.8kg=4800g

640g/4800g=2/15

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If the temperature decreased 7 and a half degreen in 3 hours and now is -14 dedgree celsius, what was the original temperature?

prisoha [69]

-14+71/2= -6 1/2 degrees Celsius is the original temperature.

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3 years ago

Rob Barros $15 from his father and then he borrows three dollars more drag numbers to write an equal using negative integers to

Vikentia [17]

Answer:

The amount of money in dollars that Rob owe his father is -$18

Step-by-step explanation:

From the given information:

Rob borrows $15 from his father and then he also borrows $3 more.

Thus, the amount he owes is father is now:

- $15 - $3 = - $18 Since we are using negative integers.

The amount of money in dollars that Rob owe his father is -$18

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2 years ago

The surface area of a pyramid is 327 square meters. what is the surface area of a similar pyramid that is smaller by a scale fac

N76 [4]

Answer:

$\boxed{\text{144.33 m}^{2}}$

Step-by-step explanation:

The scale factor (C) is the ratio of corresponding parts of the two pyramids.

The ratio of the areas is the square of the scale factor.

$\dfrac{A_{1}}{ A_{2}} = C^{2}\\\\\dfrac{\text{327 m}^{2}}{A_{2}} = \left (\dfrac{1}{\frac{2}{3}}\right)^{2}\\\\ \dfrac{\text{327 m}^{2}}{A_{2}}= \dfrac{9}{4}\\\\\text{1308 m}^{2}= 9A_{2}\\\\A_{2} = \text{145.33 m}^{2}\\\text{The surface area of the smaller pyramid is \boxed{\text{145.33 m}^{2}}}$