X + (X+1)+ (x+2)=-342
3x+3 =-342
3X=-339
X=-113, -114, -115
Answer:
1/3
Step-by-step explanation:
the multiplication of 2 lines perpendicular is - 1
then if x is the slope you are looking for
x * - 3 = - 1
x = 1/3
Since we are trying to find the adult seats, we'll set that to x. Now the student section is 2x + 25. The total seats is 130 which is the student section and adult section added together. So now we can write an equation from the information given...
Students + adults = 130
(2x + 25) + x = 130
2x +25 +x = 130
2x + x + 25 = 130
3x + 25 = 130
3x = 130 - 25
3x = 105
x = 105/3 = 35
So there are 35 adult seats (remember we set adults to x)
Now we substitute back into the equation to find the students seats. As you recall students = 2x + 25
Students = 2x + 25
Students = 2(35) + 25
Students = 70 + 25
Students = 95
There are 95 student seats and 35 adult seats.
Answer:
The unit rate
of the graph is 4, the slope of the graph is 4, and the comparison between answers is that they are equal.
Step-by-step explanation:
For every increase of 1 in the X value of the graph, the Y value increases by 4, so the slope would be
or 4.
Answer:
133.2
Step-by-step explanation:
First take off the 40%
740 - (40/100)*740
740 - 0.4 * 740
740 - 296
444
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That answer of 444 is the new selling price.
Now you take 30% of 444
30% of 444
30/100 * 444
0.3 * 444
133.2
Joseph will have to pay 133.2 dollars for the TV he want.
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One Step
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You could do this problem all in one step
30% (740*60% )
0.3 ( 740*0.6)
0.3(444)
133.2
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Both methods give the same answer.