Answer:
121
Step-by-step explanation:
Let u be 1 unit.
5u+11u=176
16u=176
u=176÷16
=11
11u=11×11
=121
Answer:
8.5
Step-by-step explanation:
8.54.
4 < 4
round down.
8.5
Answer: C
Step-by-step explanation: because her earnings which means net income is 120 because 15 hours times 8 hours is 120 so she cant make more than that if she gets paid $ 8 for 15 hours.
By algebraic handling, the value of k of the system of equations is equal to 2.
<h3>What are the values of two constants such that a system of equations has a single solution?</h3>
Herein we find a system formed by two equations, a linear function and a quadratic equation with the following characteristics:
y = x² + b · x + 5 (1)
y = 2 · x + b (2)
If we eliminate y in (1) and (2), then we have this expression:
x² + b · 3 + 5 = 2 · x + b
3² + b · x + 5 = 2 · 3 + b
3 · b + 14 = 6 + b
14 = 6 - 2 · b
8 = - 2 · b
b = - 4
By (2), y = k, x = 3 and b = - 4, we find the value of k:
k = 2 · 3 - 4
k = 6 - 4
k = 2
By algebraic handling, the value of k of the system of equations is equal to 2.
To learn more on systems of equations: brainly.com/question/12895249
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