Apiggy bank contains 100 coins consisting of nickels and dimes. the total value of the coins is $8.50. how many coins of each type does the bank contain?

the bank contains 30 nickels and 70 dimes.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

step-by-step explanation:

the shape,the size and the distance