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3 years ago

10) 27% of 142 is what?

Mathematics

2 answers:

iris [78.8K]3 years ago

6 0

Answer:-0.190

Step-by-step explanation:

Olin [163]3 years ago

4 0

Answer:

38.34

Step-by-step explanation:

27%

Write as a decimal (divide % by 100)

0.27

Multiply by 142

0.27(142)

38.34

Hope this helps :)

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A sphere is just enclosed inside a right circular cylinder. If the volume of the sphere is 140 cm3, find the volume of the gap b

alexgriva [62]

-----------------------------------------------------------
Find Radius :
-----------------------------------------------------------
$\text {Volume of a sphere =} \dfrac{4}{3} \pi r^3$

$\dfrac{4}{3} \pi r^3 = 140$

$\pi r^3 = 140 \times \dfrac{3}{4}$

$\pi r^3 = 105$

$r^3 = \dfrac{105}{ \pi}$

$r = 3.22 \ cm$

-----------------------------------------------------------
Find volume of the cylinder :
-----------------------------------------------------------
$\text {Volume of the cylinder = } \pi r^2h$

$\text {Volume of the cylinder = } \pi ((3.22)^2(3.22 \times 2)$

$\text {Volume of the cylinder = } 209.77 \ cm^3$

-----------------------------------------------------------
Find volume of the gap :
-----------------------------------------------------------
$\text {Volume of gap = } 209.77 - 140$

$\text {Volume of gap = } 69.77 \ cm^3$

-----------------------------------------------------------
$\bf \text {Answer : } 69.77 \cm^3$
-----------------------------------------------------------

6 0

4 years ago

A sequence can be generated by using an=3an−1, where a1=7 and n is a whole number greater than 1.

mixer [17]

Answer:

7,10,13

Step-by-step explanation:

5 0

3 years ago

-38/-8 plz help me plz

Bad White [126]

Answer:

(-38) / (-8)

equals 4.75

a negative divided by a negative is always a positive

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 57 times in 3 minutes. What is her

Vlada [557]

b. Every 24 minutes

Step-by-step explanation:

A neon sign blinks every 6 minutes, and another sign blinks every 8 minutes.

The first step is to:

Find and list multiples of each time each neon sign blinks.

This means, we find the Multiples of 6 and 8

Multiples of 6:

6, 12, 18, 24, 30, 36

Multiples of 8:

8, 16, 24, 32, 40

The first and common multiple of 6 and 8.

Therefore, the Least common multiple [LCM(6, 8) ] = 24

Hence, they often blink at the same time every 24 minutes.

Therefore, option b.Every 24 minutes is correct.

please mark me brainliest!

3 0

2 years ago

Read 2 more answers

Help for brainliest and 10 points

Travka [436]

Answer:

-3

Step-by-step explanation:

$0.002 = 2 \times {10}^{ - 3} \\ \implies \: x = - 3$

4 0

2 years ago