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3 years ago

0.3 is 10% of what number?

Mathematics

1 answer:

Mariana [72]3 years ago

5 0

0.03 i am thinking it is that because is 0.3 out of 10%

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SOMEBODY PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST

Lana71 [14]

Answer:

a- 130, 130, and 50

b- 7 and 10

7 0

3 years ago

Read 2 more answers

a) find center of mass of a solid of constant density bounded below by the paraboloid z=x^2+y^2 and above by the plane z=4.(b) F

slava [35]

Answer: x-bar = y-bar = 0 whereas z-bar = 8/3

M= (c^2)/8 which is intern equal to 2 $\sqrt{2}$

Step-by-step explanation:

Find the area, by setting the limits as

= $4\cdot \int _0^{\frac{\pi }{2}}\int _0^2\int _{r^2}^4\:rdzdrd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}\int _0^2r\cdot \:4-r^3drd\theta$

$=4\cdot \int _0^{\frac{\pi }{2}}4d\theta$

$=8\pi$

Therefore;

Mxy= $\int _0^{2\pi }\int _0^2\int _{r^2}^4\:zrdzdrd\theta$

z-bar = 8/3

M= 8 $\pi$ dividing it into two volume gives us = 4 $\pi$

means $4\pi =\int _0^{2\pi }\int _0^{\sqrt{c}}\int _r^c\:rdzdrd\theta$

$4\pi =\left(\pi c^2-2\pi \frac{c^{\frac{3}{2}}}{3}\right)$

c=2 $\sqrt{2}$

5 0

3 years ago

Solve 3x−5 = 9. x = −3 x = 2 x = 7 x = 8

Airida [17]

I hope this helps you

3x-5+5=9+5

3x=14

x=4,66666....

8 0

4 years ago

Read 2 more answers

A family drove 180 miles to disneyland. If they left at 10:30

luda_lava [24]

Average speed = Distance/ time

Distance = 180 mi

Time = time(final) - time(initial)

To find time will be easier if we translate am and pm into 24 h scale.

am will stay the same, so 10:30 am is 10:30. (initial)

pm will be turned (am time + 12), 3: 00 pm = 3:00 +12 =15:00 (final)

Time = time(final) - time(initial)= 15:00 - 10:30 = 14:60 - 10:30 =4h 30 min

4h + 30 min = 4h + 1/2 h= 4.5 h (time)

Average speed = Distance/ time = 180 mi / 4.5 h = 40 mi/h

Answer is 40 mi/h.

3 0

3 years ago

Write and solve an equation that represents the

Oksi-84 [34.3K]

Let n represent the unknown number

n-10=9

+10 +10

—————

n=19

Brainliest??

4 0

3 years ago