Last month, Katie started training for the swim team. She swam 20 laps every day for 18 training days. This month, Katie wants t
o swim 215 more laps than last month. She will swim 3 more laps per training day and add more training days to her monthly schedule.
If Katie adds 5 training days to her schedule this month, will she swim 215 more laps?
If Katie adds 10 more training days to her schedule this month, will she swim 215 more laps?
If Katie adds 6 more training days to her schedule this month, will she swim 215 more laps?
Build an equation for finding the number of additional training days she needs to swim 215 more laps.
If Katie adds 5 training days to her schedule this month, will she swim 215 more laps?
If Katie adds 10 more training days to her schedule this month, will she swim 215 more laps?
If Katie adds 6 more training days to her schedule this month, will she swim 215 more laps?
Build an equation for finding the number of additional training days she needs to swim 215 more laps.
1 answer:
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Answer:
There are 26 purple marbles in the bag.
Step-by-step explanation:
Firstly, you have to make an expression in terms of x where x represent red marbles. Given that the question says purple marbles is 2 more than 3 times the number of red marbles. So the expression is :
Let red marbles = x,
Next, given that the total marbles in the bag is 34 so you have to add both marbles together and solve the value of x :
Lastly, you have to substitute the value of x into the expression of purple marbles :
Let x = 8,