Answer: 89 students remained at school that day.
Step-by-step explanation: If there are 104 students, and 15 are absent, you subtract, therefore, the answer is 89.
Answer:
cans extra food is needed to feed the second cat.
Step-by-step explanation:
Given:
When chad had one cat he needed to serve 1/5 of a can of cat food each day. Now that chad adopted a second cat he needs to serve a total of 11/2 cans each day.
Now, to find the extra food is needed to feed the second cat.
Food needed for one cat = 
Food needed for both one and second cat needed = 
Now, extra food needed to feed the second cat:
<u><em>Food needed for both one and second cat needed - food needed for one cat.</em></u>
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Therefore,
extra food is needed to feed the second cat.
Answer: A <em>plane </em>
This needs to be 20 characters long so this is ok
Answer:
It is B 40.
Step-by-step explanation:
60+x+2x=180
120=3x
x=40
Answer:
Step-by-step explanation:
I'm assuming you need the age of the bowl. Start with the fact that you have remaining 28% of the original amount before any of it decayed. You always start with 100% of something unless you're told differently. That means that the equation looks like this:
and begin by dividing both sides by 100 to get
. To solve for t we have to be able to bring it down from its current position of exponential. To do this we would either take the log or the natural log since the rules for both are the same. However, the natural log is the inverse of e, so they undo each other. We take the natural log of both sides which allows us to pull down the -.0001t. At the same time remember that the natural log and e are inverses of each other so they are both eliminated when we do this.
ln(.28) = -.0001t Now it's easy to solve for t.
and
so
t = 12729.65676 years or rounded, 12730 years.