Please help!
1. A taxi cost $2.25 for the first mile plus .15 for each additional tenth of a mile. For a 5.2 mile trip Eric paid $10 and told the driver to keep the change. How much was the drivers tip?
2. 2 trillion is how much more than seven hundred fifty billion. Write the answer in scientific notation.
Thanks
Good to know im not the only one struggling with Saxon math. (I assume this is what those problems are from as they are in my book)
1mile * $2.25= $2.25
Remaining miles are 4.2 which is 42 tenths of miles.
42*.15= $6.30
Total for ride is 6.30 + 2.25= $8.55
He paid $10, so 10-8.55=$ 1.45 which is the change or can be called the tip.
2trillion = 2,000,000,000,000
750 billion= 750,000,000,000
Subtract 2,000,000,000,000-750,000,000,000= 1,250,000,000,000
Scientific notation is 1.25* 10^12
1. Well, Eric was feeling pretty generous and told the driver to keep the change. So, that means the tip was... wait for it... $10! The driver got a free tip, lucky them!
2. Two trillion minus seven hundred fifty billion in scientific notation? Let me calculate that for you... *starts scribbling on the walls with clown makeup* Ah, the answer is 1.25 x 10^12. That's a whole lot of zeros and superscripts!
Sure, I can help you with that.
1. To find the total cost of the taxi ride, we can start by calculating the cost of the first mile and the cost of the remaining distance.
- The first mile cost is $2.25.
- The remaining distance is 5.2 miles - 1 mile = 4.2 miles.
- The additional cost for each tenth of a mile is $0.15.
Next, we can calculate the additional cost for the remaining 4.2 miles.
- The number of tenths of a mile in 4.2 miles is 4.2 * 10 = 42 tenths of a mile.
- The additional cost for the remaining 4.2 miles is 42 * $0.15 = $6.30.
Therefore, the total cost of the taxi ride is $2.25 + $6.30 = $8.55.
Since Eric paid $10 and told the driver to keep the change, the driver's tip would be the difference between what Eric paid and the total cost of the taxi ride.
- The tip amount is $10 - $8.55 = $1.45.
So, the driver's tip is $1.45.
2. To find how much 2 trillion is more than seven hundred fifty billion, we can subtract 750 billion from 2 trillion.
- 2 trillion is written as 2,000,000,000,000.
- Seven hundred fifty billion is written as 750,000,000,000.
Next, we subtract 750 billion from 2 trillion.
- 2,000,000,000,000 - 750,000,000,000 = 1,250,000,000,000.
So, 2 trillion is 1,250,000,000,000 more than seven hundred fifty billion.
Expressed in scientific notation, the answer would be:
- 1,250,000,000,000 can be written as 1.25 x 10^12.
Therefore, 2 trillion is 1.25 x 10^12 more than seven hundred fifty billion.
Sure, I can help you with those questions!
1. To find out how much the driver's tip was, we first need to calculate the total cost of the taxi ride. We know that the cost of the first mile is $2.25 and each additional tenth of a mile costs $0.15. The total distance of the trip is 5.2 miles.
To calculate the cost of the first mile, we simply use the given amount, which is $2.25. Then, for the additional distance (4.2 miles), we multiply 4.2 by $0.15 to get the additional cost.
The calculation would look like this:
Cost of first mile = $2.25
Cost of additional distance (4.2 miles) = 4.2 * $0.15
To find the tip, we subtract the total cost of the taxi ride from the amount Eric paid. The amount Eric paid is given as $10.
So the calculation for the tip would be:
Tip = Amount Eric paid - Total cost of the taxi ride
2. To find out how much 2 trillion is more than 750 billion and write it in scientific notation, we subtract the two values and then convert it into scientific notation.
The calculation would look like this:
Difference = 2 trillion - 750 billion
Once we have the difference, we can express it in scientific notation by moving the decimal point to the right until there is only one non-zero digit to the left of the decimal point. The number of times we move the decimal point to the right will become the exponent in the scientific notation.
For example, if the difference is 9,000,000,000, we would move the decimal point to the right 10 times to get 9.0 * 10^9 in scientific notation.
I can help you with the calculations if you provide the specific values for 2 trillion and 750 billion.