5miles/8km = xmiles/80km
8x=400
x=50
Total people x,
then, 3.5x + 5.5x + 6 = 51
simplify, 9x +6 = 51
subtract 6 on both sides, 9x= 45
divide by 9 on both sides, x= 5
therefore, total 5 people in the family.
Answer:
Hey!
To start this problem, we'll most likely need a calculator. Handling can get a little messy, and tricky.
(also note that "pie" is a food, the mathematical term , is pronounced "pie", but spelled "pi.")
Anyway, multiplying 3.14159265359..... () 160 = 502.654824574...... going on and on.
In general, these types of problems are better for a calculator if you want an exact answer. Otherwise, just resort to estimation. is pretty close to 3.14.
160 3.14 = 502.4, which is decently close to our other answer.
Hope this helps!
- sahkfam
I believe it would be as following:
x+7>12
Here, x represents the unknown number. The symbol for no less than is greater than.
4.95+4.95×0.05=5.20
5 dollars 20 cents