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3 years ago

Sasha walk 12 m in 16.8 seconds sam walked 31 m in 46.5 seconds who was the fastest?

Mathematics

2 answers:

irina [24]3 years ago

7 0

Sasha: 16.8 seconds divided by 12 m=1.4 meters per second

Sam:46.5 seconds divided by 31 m=1.5 meters per second

KengaRu [80]3 years ago

4 0

Answer:

Just a bored teen willing to help,

hope you're having a splendiferous day...

Step-by-step explanation:

Sasha: 16.8 seconds÷12 m=1.4 meter per second.

Sam: 46.5 seconds÷31 m=1.5 meter per second.

Sasha walked the fastest.

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The radius of a cylindrical vessel is 7 cm and height is 1400 m . Find the cost of painting its inner curved surface area at the

Olegator [25]

Answer:

Cost = 616000 DHS per square centimetre.

Step-by-step explanation:

curved surface of a cylinder = 2 $\pi$ rh

r = 7 cm

h = 1400 m = 140000 cm

The outer curved surface area of the cylinder = inner curved surface area of the cylinder

The inner curved surface of the cylinder = 2 $\pi$ rh

= 2 x $\frac{22}{7}$ x 7 x 140000

= 2 x 22 x 1 x 140000

= 6160000

The inner curved surface of the cylinder is 6160000 square centimetre.

But, the cost of painting is at the rate of 10 DHS per square centimetre.

The inner curved surface of the cylinder = 6.16 x $10^{6}$ square centimetre.

cost of painting the inner curved surface area = $\frac{6.16*10^{6} }{10}$

= 616000 DHS per square centimetre

The cost of painting the inner surface is 616000 DHS per square centimetre.

6 0

3 years ago

Put in order by least to greatest. 1,0.7,1/10

Finger [1]

Answer:

1/10, 0.7, 1

Step-by-step explanation:

1/10=0.1

0.7=7/10

1=1/1=1.0

3 0

3 years ago

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The ratio of dark chocolate candies to white chocolate candies is 4 to 3.

Elena L [17]

The answer is 18 are white chocolate.

Here is my proof

4 × 6 = 24 and 3 × 6 = 18 and I got 4 and 3 from the ratio of dark chocolate candies to white chocolate candies and I got the 6 from the multiplication chart that they both end up with the same number which is 6. So 18 is the answer

3 0

3 years ago

Simpifly (-5x2 - 3x - 7) + (-2x3 + 6x2 - 8)

ioda

Answer:

-2x³ + x² - 3x - 15

Step-by-step explanation:

Simply combine like terms together:

-5x² - 3x - 7 - 2x³ + 6x² - 8

-2x³ + (-5x² + 6x²) - 3x + (-7 - 8)

-2x³ + x² - 3x + (-7 - 8)

-2x³ + x² - 3x - 15

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3 years ago

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Which is the equation for the line that has a slope of 12 and passes through the point (3, 20)?

sasho [114]

Answer:

y=12x-16

Step-by-step explanation:

y-y1=m(x-x1)

y-20=12(x-3)

y=12x-36+20

y=12x-16

4 0

3 years ago