With only the description, my answer is 20 students.
Hi there.
We know that the cost of 2 bags is $4, which can be modeled as 2n.
All we need to do is replace the variable with the number of bags.

The cost of 1 bag is $2.
Hope this was correct, lol.
Answer:

Step-by-step explanation:
<u>Given number:</u>
29,980,000,000
<u>Rules:</u>
- Move the decimal point after the first non-zero digit. (after 2)
- Here, we will move the decimal point 10 places to the left to move it after the first non-zero digit.
- Since we move the decimal point 10 places, we will write the number as a multiple of 10¹⁰ (10 being the exponent).
<u>The number will become:</u>
2.998 × 10¹⁰
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
1. 24 km/hour
2. 48 km
Step-by-step explanation:
1 mile = 1.6 km
cyclist = 15 miles/ hour
we want to multiply speed by something that will cancel miles out and leave km. to do this, we want to multiply it by something with miles on the bottom and km on the top.
this is because
miles * km / miles = km as the miles cancel out and km is left in the numerator
thus,
1 mile = 1.6 km
divide both sides by 1.6 km to get 1 on a side
1 mile / 1.6 km = 1
alternatively, divide both sides by 1 mile to get 1 on a side
1.6 km / 1 mile = 1
since we want miles on the bottom, we choose the second option
cyclist = 15 miles / hour = 15 miles/hour * 1 = 15 miles/hour * 1.6km / 1 mile = 24 km /hour
24 km/hr for 2 hours = 24 km/hr * 2 hours = 24 * 2 km = 48 km