3 years ago

(20 points)

Mathematics

1 answer:

-Dominant- [34]3 years ago

8 0

Answer:

Option 3

Option 4

Option 6

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Water flows through a pipe at a rate of 0.12 litres per second.

katrin2010 [14]

Answer:

250 seconds

Step-by-step explanation:

(0.12/1 = 30/x)

0.12x = 30

x = 250

8 0

3 years ago

What two simler problems can you use to find 9 x 38?(Hint: think about ones and tens.)

pickupchik [31]

Nine times thirty-eight can also be thirty-eight times nine or (18 divided by 2) multiplied by 38 or like this

(18/2)times(38/2)

I hope this gives you an idea

6 0

3 years ago

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PLSSS HELP IF YOU TURLY KNOW THISS

timurjin [86]

Answer:

x = -11

Step-by-step explanation:

$\frac{-x+10}{3}=7\\\\3(\frac{-x+10}{3})=3(7)\\\\-x+10=21\\\\-x+10-10=21-10\\\\-x=11\\\\\frac{-x}{-1}=\frac{11}{-1}\\\\x=-11$

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3 years ago

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Simplify -9/6 divided by 3/-2. PLEASE HELP!

Pachacha [2.7K]

-9/6 / -3/2

You can write it as, 9/6 * 2/3 = 3/3 = 1

3 0

3 years ago

Help Please . its due in 5 hours and i cant find answers

dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

$V=\frac{1}{3}Bh$

Find the area of the circular base. The circumference of a circle is $C=2\pi r$ , so

$2\pi r = 6\pi\\\\r=3$

Now that you know the radius of the circular base, you can find its area:

$A=\pi r^2 = \pi(3^2)=9\pi$

The height of the cone is 13. Time to use the volume formula.

$V=\frac{1}{3}Bh\\\\V=\frac{1}{3}(9\pi)(13)\\\\V=39\pi$

6 0

3 years ago