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DochEvi [55]
3 years ago
5

95% of what number is 57

Mathematics
2 answers:
dalvyx [7]3 years ago
8 0
To get this answer you set up an equation.  0.95x=57.  You then divide both sides by 0.95 giving x=57/0.95 which equals x=60.  Therefore, the what number is 60 because 60*0.95=57.
Serga [27]3 years ago
8 0
When u set up the answer- however you do it - you can get 60 if you work it out the right way?
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A student on a piano stool rotates freely with an angular speed of 2.85 rev/s . The student holds a 1.50 kg mass in each outstre
Vlad1618 [11]

Answer:r'=0.327 m

Step-by-step explanation:

Given

N=2.85 rev/s

angular velocity \omega =2\pi N=17.90 rad/s

mass of objects m=1.5 kg

distance of objects from stool r_1=0.789 m

Combined moment of inertia of stool and student =5.53 kg.m^2

Now student pull off his hands so as to increase its speed to 3.60 rev/s

\omega _2=2\pi N_2

\omega _2=2\pi 3.6=22.62 rad/s

Initial moment of inertia of two masses I_0=2mr_^2

I_0=2\times 1.5\times (0.789)^2=1.867

After Pulling off hands so that r' is the distance of masses from stool

I_0'=2\times 1.5\times (r')^2

Conserving angular momentum

I_1\omega =I_2\omega _2

(5.53+1.867)\cdot 17.90=(5.53+I_o')\cdot 22.62

I_0'=1.397\times 0.791

I_0'=5.851

5.53+2\times 1.5\times (r')^2=5.851

2\times 1.5\times (r')^2=0.321

r'^2=0.107009

r'=0.327 m

7 0
3 years ago
30 points to anyone that can answer correctly in probability.
IrinaVladis [17]

Formula: P(A or B)=P(A)+P(B)-P(A or B)  

p(c)=7/18

p(s)=6/18

p(c or s)=2/18

0.39+0.33-0.11=

answer:0.61

4 0
3 years ago
Read 2 more answers
In the following picture ABCD ~ AEFG.<br> Which equation can be used to find the value of x?
Strike441 [17]
Answer:
#1

Remember to match up letter
8 0
3 years ago
Read 2 more answers
Please help solve,
Gemiola [76]
1 gallon = 7 miles
2 gallon = 14 miles
3 gallon = 21 miles
4 gallon = 28 miles
4 0
3 years ago
a used bookstore will trade two of its books for three of us and they'll brings and 18 books to trade how many books can she get
Gemiola [76]
18/3=6
6x2=12
She can get 12 books from the store
4 0
3 years ago
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