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3 years ago

What is 257/8×3 can you tell me the answer plz

Mathematics

1 answer:

Allushta [10]3 years ago

7 0

The answer is 10.7 b/c 8 times three is 24 and then you divide the number 257 by 24

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Krutika, David and Mark share some sweets in the ratio

Aneli [31]

Answer:

120

Step-by-step explanation:

Krutika:48

David: 48

Mark: 48÷2= 24

Because 2 : 2 : 1

48+48+24=120

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2 years ago

Help please! Lily records the change in her dogs weight over 4 weeks what is the dogs average weekly weight change

madreJ [45]

Answer:

mabe divided by 2

Step-by-step explanation:

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3 years ago

What is the distance between two points with coordinates at (8, 40) and (20, 5)?

Alchen [17]

Answer:

37 units

Step-by-step explanation:

The two points form a right triangle so

a²+b²=c² so

(8-20)²(x values)+(40-5)²(y values)=c² (distance) so

12²+35²=c² so

144+1225=c²

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7 0

2 years ago

A wheel initially has an angular velocity of 18 rad/s, but it is slowing at a constant rate of 2 rad/s 2 . By the time it stops,

Kaylis [27]

Answer:13 revolution

Step-by-step explanation:

Given data

Wheel initial angular velocity $\left ( \omega \right )$ =18 rad/s

Contant angular deaaceleration $\left ( \alpha \right )$ =2 $rad/s^2$

Time required to stop wheel completely=t sec

$\omega =\omega_0 + \aplha t$

0 =18 + $\left ( -2\right )t$

t=9 sec

Therefore angle turn in 9 sec

$\theta$ = $\omega_{0} t$ + $\frac{1}{2}$ $\left ( \alpha\right )t^{2}$

$\theta$ = $18\times 9$ + $\frac{1}{2}$ $\left ( -2\right )\left ( 9\right )^2$

$\theta$ =81rad

therefore no of turns(n) = $\frac{81}{2\times \pi}$

n=12.889 $\approx$ 13 revolution

3 0

3 years ago

Please help! I will mark brainliest!

Maurinko [17]

$\left(3.5\times 10^{-2}\dfrac{kg}{L}\right)\times\left(2.64\times 10^{20}\,L\right)=(3.5\times 2.64)\times 10^{(-2+20)}\,kg\\\\=\bf{9.24\times 10^{18}\,kg}$

_____

Multiply the numbers and add the exponents.

4 0

3 years ago