HEL A penny has a mass of 2.5 grams, I just cashed in 75$ in pennies at the coin star.
How many Kg is that? *

Step-by-step explanation:

If a mass of 2.5 grams costs a penny, we want to know the amount of mass that will cost $75.  Before we get the mass, we need to convert 75 dollars to penny. Using the conversion:

$1 = 100pennies

$75 = (75*100)pennies

$75 = 7,500 pennies

Using the law of equivalence

1 penny = 2.5 grams

7,500pennies = x grams

Cross multiply

1 * x = 2.5 * 7500

x = 18,750 grams

Hence 18,759 grams will cost $75

Converting grams to kilograms

If 1000 grams = 1kg

18,750grams -= y

cross multiply

1000*y = 18750

Divide both sides by 1000

1000y = 18750/1000

y = 18.750kg

Hence the amount in kilogram of $75 coin in pennies is 18.750kg

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

do your own work and don"t cheat.

step-by-step explanation: