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2 years ago

What is the value of x/3y, when x = 18 and y = 3? A. 3/18 B. 2 C. 3 D. 6

Mathematics

1 answer:

Eva8 [605]2 years ago

3 0

All we need to so substitute and simplify:

18/3(3)

18/9

Best of Luck!

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PLEASE HELP: The mass of a ball is 128 g. It has a density of 0.5 g/cm³. What is the volume of the ball? Show your work and plac

tiny-mole [99]

Answer:

Part 1) The volume of the ball is 256 cm³

Part 2) The radius of the ball is 3.94 cm

Step-by-step explanation:

Part 1) we know that

The density is equal to divide the mass by the volume

D=m/V

Solve for the volume

The volume is equal to divide the mass by the density

V=m/D

In this problem we have

m=128 g

D=0.5 g/cm³

substitute

V=128/0.5=256 cm³

Part 2) what is the radius of the ball?

we know that

The volume of the sphere (ball) is equal to

$V=\frac{4}{3}\pi r^{3}$

we have

$V=256\ cm^{3}$

assume

$\pi =3.14$

substitute and solve for r

$256=\frac{4}{3}(3.14)r^{3}$

$768=(12.56)r^{3}$

$r^{3}=768/(12.56)$

$r=3.94\ cm$

7 0

2 years ago

Sarah jogged 4.8 miles each day for 22 days last month. How many miles did Sarah jog in total?

solong [7]

Answer:

105.6

hope this helps

have a good day :)

Step-by-step explanation:

8 0

2 years ago

I dont understand proportions :( someone please help me understand with an example

Lera25 [3.4K]

Oh yes... Wonderful Proportions. There are ways to do proportions but this is how I learned how to do them :

PART %
=
WHOLE 100 That is the formula. I'm not sure of an example but I hope it helps

3 0

3 years ago

Evaluate 3f(2) what is it

Georgia [21]

Answer:

Step-by-step explanation:

Edge2021

3 0

3 years ago

Please help me I need help

sdas [7]

Answer:

3.51

Step-by-step explanation:

i took 9.2 ÷ 4.14 to find how much they charged per oz. then i took 7.8 and multipled it by 45 cents per oz.

5 0

2 years ago

Read 2 more answers