<span>The answer to this question would be: A. the number of adults
</span>
In this question, there are 4 times as many students as adults going on the trip. If we put it into a function where s= student and a=adult, then we could get one equation:<span>
1. s=4a
</span><span>
Each student ticket cost $2 and each adult ticket cost $4. The total cost of the trip is $144. We also can get one equation for this
2. 2s+ 4a= 144
If you put the first equation into the second, you will get:
</span>2s+4a= 144
2(4a)+4a= 144
The function is already similar with <span>2(4x)+4x but it uses a instead of x. Then x = a = number of adult</span>
Answer:
x = 3, y = 1
Step-by-step explanation:
Given the 2 equations
y = - x + 3 → (1)
y = 2x - 5 → (2)
Substitute y = 2x - 5 into (1)
2x - 5 = - x + 3
Multiply through by 3 to clear the fraction
6x - 15 = - 2x + 9 ( add 2x to both sides )
8x - 15 = 9 ( add 15 to both sides )
8x = 24 ( divide both sides by 8 )
x = 3
Substitute x = 3 into either of the 2 equations and evaluate for y
Substituting into (2)
y = 2(3) - 5 = 6 - 5 = 1
Thus x = 3 and y = 1
Answer:
I want to say it's 8 but not sure
Step-by-step explanation:
Answer:
Explanation:
The table is:
x Given Predicted Residual value
1 -1.6 -1.2 0.4
2 2.2 1.5 0.7
3 4.5 4.7 -0.2
4 6.1 6.7 -0.6
The points on the residual plot must be the pairs (x, residual value). This is:
- (1, 0.4)
- (2, 0.7)
- (3, -0.2)
- (4, -0.6)
Thus, the correct choice is the last one: (4, -0.6)
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