Do u need all of them solved
Answer:
512 student tickets were purchased.
Step-by-step explanation:
Represenation of the unknowns: Let s be the number of student tickets and a the number of adult tickets. Then s + a = 1294.
The dollar amounts are thus ($5/ticket)s + (8/ticket)a = $8816.
Goal: Find s; to do this, eliminate a.
Since s + a = 1294, a = 1294 - s
Then: 5s + 8(1294 - s) = 8816, or
5s - 8s + 8(1294) = 8816, or
-3s + 10352 = 8816
Isolating the 3s term, we get
-3s - 1536 = 0, or
3s = 1536, which yields s = 512
512 student tickets were purchased.
(-3, 1) y = 2/5x - 4
x₁ y₁ slope (m) = 2/5x
Since the equation we are looking for is perpendicular to y = 2/5x - 4, we need to find the opposite reciprocal slope. We have to flip the slope upside down and turn it negative.
2/5 ⇒ 5/2 ⇒ -5/2
So far, we have the equation y = -5/2.
Now, we need to find the y intercept by plugging in the given point into point slope form, which is...
y - y₁ = m(x - x₁)
The subscripts in the y and x are just the x and y in (-3,1). They are just placeholders, not exponents.
y - 1 = -5/2(x + 3)
y - 1 = -5/2x - 15/2
+ 1 + 1
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y = -5/2x - 13/2 ⇒ final equation
Answer <span>−44 > −2x − 8 ≥ −8 for this is D
</span><span>-2x -8 < - 44 and -2x -8 _> -8</span>
