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3 years ago

NEED ANSWERED ASAP!

Mathematics

1 answer:

antoniya [11.8K]3 years ago

6 0

The difference between masses of both cones is: 838 grams

Step-by-step explanation:

As both cones have same height and radius. Both will have same volume

Here

r=4 cm

h= 10 cm

The volume is given by:

$V=\frac{1}{3}\pi r^2h$

Putting values

$V=\frac{1}{3}*\frac{22}{7}*(4)^2*10\\V=\frac{22}{21}*16*10\\V=167.62\ cm^3$

Mass of Steel Cone:

$M_s=Density\ of\ steel*Volume\\=7.75*167.62\\=1299.055\ grams$

Mass of Granite Cone:

$M_g=Density\ of\ granite*Volume\\=2.75*167.62\\=460.955\ grams$

Difference between masses of both cones

$D = M_s-M_g\\=1299.055-460.955\\=838.1\ grams$

Rounding off to nearest gram: 838 grams

The difference between masses of both cones is: 838 grams

Keywords: Volume, Mass

Learn more about volume at:

#LearnwithBrainly

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Janeece built a rectangular garden bed that was 14

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Answer:

14 x 10 = 140 yd²

Step-by-step explanation:

Area of a rectangle is length times width

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3 years ago

A water container is 1/8 full. 35 litres if water are now poured into the container. The container is now 1/4 full.

Aloiza [94]

Answer:

<em>The container can hold 280 liters of water.</em>

Step-by-step explanation:

<u>Proportions</u>

The water originally fills 1/8 of a container. Then 35 lt of water are poured into the container and now it's 1/4 full.

If we subtract the final portion of the tank minus the original portion of the container, we obtain the portion that was poured into.

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The container can hold 280 liters of water.

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3 years ago

Have three witches each holding a broom and a spoon. Witches say witch plus witch plus witch =45. Three brooms say broom plus br

GrogVix [38]

Answer:

a=43

Step-by-step explanation:

w+w+w= 45 which means 15+15+15=45

b+b+b=21 which means 7+7+7=21

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6 0

3 years ago

Read 2 more answers

Alice needs 3/7 kilograms of flour for making a cake. How many of flour does she needs for making 42 cakes?

Oduvanchick [21]

Hey there!

3/7 is needed for 1 cake

If she needs to make 42 cakes, then multiply the amount for 1 by 42

42 × 3/7 = 126/7 = 18

She needs 18 kilograms of flour to make 42 cakes

Hope this helps :)

3 0

3 years ago

Urgent

Damm [24]

The result of our calculations about the rate and time are:

r=d/t

200000m/hr

200km/hr

km/hr

Rate can be regarded as the given object with respect to time.

falcon flies= 800,000 meters

t= 4 hours

We were given the formula as (d = rt)

d= distance

r = rate

t = time

We can make our calculations as:

part a:

r=d/t

part b:

falcon's rate in meters per hour = 800,000 meters / 4 hours = 200000m/hr

part c:

falcon's rate in kilometers per hour=(200000m/hr *(1/1000)=200km/hr

part d:

km/hr

Learn more about rate at:

brainly.com/question/8728504

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4 0

2 years ago