3 years ago

Dave collects rocks. he makes 12 groups of 10 rocks and has none left over. How many rocks does Dave have?

2 answers:

8 0

12 groups, and each one containing 10.
Think about it. Which operation could we use?

Multiplication!

12*10 = 120

Dave has 120 rocks.

(One nice rock collection, Dave)
;-)

Firdavs [7]3 years ago

4 0

That means he has 120 rocks
12*10=120

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The last time Sierra played softball, she hit the ball 45% of the times she was at bat. Based on this information, how many time

Ymorist [56]

Answer:

Number of times she will hit the ball the next time she plays softball if she is at bat 20 times = 9 times

Step-by-step explanation:

Percentage of times Sierra hit the ball when she was at bat playing softball= 45%

So, we can find:

Number of times she will hit the ball the next time she plays softball if she is at bat 20 times = $\textrm{45\% of 20 times} =0.45\times 20=9\ times$