What is the velocity if there are 25 waves that pass by a given point in 10 second and the wavelength is 50 cm? 1. 12.5 cm per second
2. 15 cm per second
3. 125 cm per second
4. 2.5 cm per second

.2

Step-by-step explanation: I think that it is 15 because if you put them in order which is 50 - 25 = 25- 10 = 15, I hoped it worked.

15

Step-by-step explanation:

Please mark me as brainliest it will help me a lot.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!