3 years ago

Solve the proportion r/72=1/3 r=? please help meee

Mathematics

2 answers:

yuradex [85]3 years ago

5 0

Answer:

I got you :)

Step-by-step explanation:

r=24

because 72*1=72/3=24

kumpel [21]3 years ago

3 0

Answer:

R= 24

Step-by-step explanation:

Have a nice day/night :)

Also if you you can may you please mark me brainliest

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The prices of two ratios are in the ratio x:y

Archy [21]

Answer:

4:1

Step-by-step explanation:

x+20 : y+20 = 5 : 2

(x+20)/(y+20) = 5/2

2(x+20) = 5(y+20)

2x+40 = 5y+100

2x = 5y+60 (1)

x-5 : y-5 = 5:1

(x-5)/(y-5) = 5/1

x-5 = 5(y-5)

x-5 = 5y-25

x = 5y-20 (2)

Solve (1) & (2) simultaneously,

2(5y-20) = 5y+60

10y-40 = 5y+60

5y = 100

y = 20

x = 5y-20

x = 5(20)-20 = 100-20

x = 80

x:y

80:20

4:1

8 0

3 years ago

Read 2 more answers

Given f(x)=x^4-7x^3+6x^2+8x+9

posledela

The workings to the answers are in the attachments below. Open them up in a new window to see them in full.

Lowest Point On The Graph:

(4.480878208, -61.32441280)

Highest Point On The Graph:

(1.155422854, 17.23818241)

2nd Lowest Point On The Graph:

(-0.3863010618, 7.23076164)