In a survey of 2 comma 3002,300 people who owned a certain type of car, 1 comma 2651,265 said they would buy that type of car a
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1. let the score on 1st test be = x
Given average is = 92
2nd tests scores are = 97 (assume this as y)
3rd test score = 89 (assume this as z)
Average =
Hence, 1st day score was 90.
2. Let the original recipe made x cookies
As given she doubled her recipe so 2x cookies
Her brothers ate 8 cookies, this gives 2x-8 cookies left
She gave 2 dozen or 24 cookies to the neighbor and left with 12 cookies, it becomes
This gives
or
Hence 1 recipe makes 22 cookies.
3. As given in the table,
Time used in total by boys = 255 minutes
Time used by girls in total = 213 minutes
Time used for school work by boys = 33 minutes
Time used by boys other than schoolwork = 255-33 = 222 minutes
Time used for school work by girls = 72 minutes
Time used by girls other than schoolwork = 213-72 = 141 minutes
How many more minutes per week do boys spend using the internet for purposes other than schoolwork then girls = 222-141 = 81 minutes
Hence, boys use 81 more minutes than girls for work other than schoolwork.
4. Total amount by two films = $775 million
Let x be the receipts of the second highest box office film.
Let x + 97 be the receipts of the highest one.
Equation becomes
Hence highest receipt movie brought in
The film with highest receipts bought in $436 million.
5. Vice President elected in the year = 1944
Died in the year = 1972
Total time in between = years
Age at the time of death = 88
So, he was elected 28 years back and that time his age was =
He was elected at the age of 60 years.
<em>It's nice of you to offer, but no thanks.</em>
To correctly graph this, you need to set up a simple equation and table of values. Luckily, this equation is dead-simple; I'll define <em>y</em> as the total cost and <em>x</em> as the number of water bottles sold.
Since 1.50$ is the cost for one bottle, multiplying that with your variable that defined the amount of bottles, <em>x</em>, gets you the total, <em>y</em>. Now that we have a basic equation, we can begin plugging in values.
Recall that a function is basically just something that takes in a value and returns another one; in our case, it takes the <em>amount of bottles</em> and returns the <em>total cost. </em>Now, plug in the x-values present on the graph (specifically only whole numbers, since you can't have a half bottle). I can't make a proper table but I'll make do.
x y
--------
0 0
1 1.5
2 3
3 4.5
4 6
5 7.5
-----------
Great, now that you have a table of values all you have to do is plug them into the graph, which I've attached. It's pretty crude since I drew it in mspaint but I'm sure you get the point at this point.
