MATH. HELP NEEDED

Question

show work if possible

 

what percent is 10 of 8? 

 

what percent is 63 of 84?

 

what percent is 3 of 600

 

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33 1/3 of p is 19. what is p? 

Answer 1

what percent is 63 of 84 ?

percentage=rate*base

63=rate*84

rate=63/84=(3*21)/(4*21)=3/4=(3*25)/(4*25)=75/100=75%

 

what percent is 3 of 600 ?

p=r*b

3=r*600

r=3/600=1/200=0.5/100=0.5%

 

33 1/3% of p=19

change 33 1/3% to a fraction

33 1/3%=(33 1/3)/100=(100/3)/100=100/300=1/3

(1/3)*p=19

multiply both sides by 3

(3)(1/3)p=3*19

p=57

Answer 2

Think and estimate: 10>8 which means your answer will me more that 100%

Let x be the percent  

Rephrase the question: 10 is what % of 8?

10=8x     simplify

5=4x       divide both sides by 5

x=5÷4

x=.1.25 

Expressed as percent x is 125%

 

Check by substituting in the original equation

10= 8(1.25)

 

It checks!

 

Set up the other solutions in the same way!