In 10 minutes, a heart can beat 700 times. at this rate, in how many minutes will a heart beat 140 time? at what rate can a heart beat?

In 10 Minutes, A heart can beat 700 times:

At the rate of 700, how many minutes will a heart beat 140 times;

Equation:  

10 beats per minute divide by 700 >  1 / 70 > ((Decimal: 0.014286).

Then, Divide the  1 / 70 / 140  >  2  mins heart rate beat 140 times

Solve or Show work:

10 / 700  =   1 / 70   (Decimal: 0.014286)  

1 / 70 / 140

( 1 ) / ( 1 ) ( 140 ) / ( 70 )

( 1 ) / ( 1 ) ( 2 ) / ( 1 )

(1)/(1) (2)/(1)

Answer >    2  Therefore, It will take 2 minutes for the heart rate to beat 140 times.

Hope that helps                                                : )

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500