Answer for how many laps she needs to swim around is 40
Use the distributive property:
5*b+5*2+b=20
5b+10+b=20.
Combine like terms:
6b+10=20.
Subtract 10 from both sides:
6b+10-10=20-10
6b=10.
Divide both sides by 6:
6b/6=10/6
b=5/3=1 2/3.
Brian travels 1 2/3 hours. This means Annie travels
5(1 2/3+2)=5(3 2/3)=5(11/3)=55/3=18 1/3 hours.
Hope this helps!
Hello there! 0.7 as a fraction would be 7/10 because moving one place to the right of the decimal point gives us tenths, meaning that our denominator is 10. In terms of mixed numbers, however, there is none. 0.7 cannot be a mixed number because it is less than one whole. If you need any extra help, let me know and I will gladly assist you.