Answer:
2.4 hours
Step-by-step explanation:
David's time = 6 hours
Anthony's time = 4 hours
the combined time is given by the following formula
1/ (david's time) + 1/(anthony's time) = 1/total time
1/6 + 1/4 = 1/Total
4/24 + 6/24 = 1/Total
10/24 = 1/ total (taking reciprocal of both sides)
24/10 = total
total time = 24/10 = 2.4 hours
Answer:
6/16, which can be reduced to 3/8
You don't have all the numbers, you don't know what X equals, you need to know what X equals in order to complete the equation
B) -8 + (-12)
Because you just have to use the distributive property and distribute -1 to (8+12)
Answer:
Step-by-step explanation:
A group of 2 hot dogs and 1 soda makes a group of 3 items. There were ...
234/3 = 78
groups of items sold.
Since there is 1 soda in the group, that's 78 sodas. The number of hot dogs is 2 times that, or 156 hot dogs.
78 sodas and 156 hot dogs were sold.
