The system of equations below has no solution. Which equation could represent a linear combination of the system? lm *+¿x= 15 =
42 4x + 15 y = 12 0 0 = -78 DO 15 -y=33 2 O0=0
1 answer:
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Isaiah will mow 9 lawns in 3 hours at the given rate.
Step-by-step explanation:
Given,
Lawns mowed in 25 hours = 75 lawns
We will find unit rate in terms of lawns;
75 lawns = 25 hours
1 lawn =
9 lawns =
9 lawns = 3 hours
Isaiah will mow 9 lawns in 3 hours at the given rate.
Keywords: unit rate, fraction
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For this case we have the following equation:
Let
We have:
By definition, given an equation of the form
The quadratic formula, to find the solution can be written as:
In this case we have:
Substituting in the quadratic formula we have:
See attached image
Answer:
Option B
