Answer:
n = 4.5
Step-by-step explanation:
1 n
------= ------------
2 9
using cross products
1 * 9 = 2 * n
divide each side by 2
9/2 = 2n/2
9/2 = n
n = 4.5
You just put the numbers in the formula 3x30 = 90 km
Answer: 18.5
Step-by-step explanation: Steps are down.
1. Move the decimal point all the way to the right.
2. Put a decimal point in the quotient exactly as the one in the dividend.
3. Divide the tens column by the divisor.
4. Multiply the divisor by the quotient.
5. Subtract the product by the divisor.
6. Bring down what's left, then repeat.
The answer to your question is 343.6g
