Lisa solved 3x2 + 1 = 28 as shown.
1 answer:
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Answer:
The answer is
<h3>2 to 1 significant figure</h3>Step-by-step explanation:
To solve the question first convert the mixed fraction to an improper fraction
That's
So we have
Find the LCM of the fractions
The LCM of 5 and 4 is 20
That's
= 2.15
We have the final answer as
<h3>2 to 1 significant figure</h3>Hope this helps you
Answer:
The solution for given system of equations is: x = 6 and y = 3
Or
(6,3)
Step-by-step explanation:
Given equations are:
There are three methods to solve simultaneous equations
- Elimination
- Substitution
- Co-efficient method
We will use the elimination method as the coefficients of x in both equations are already same
Subtracting equation 2 from equation 1
Putting y = 3 in equation 2
Hence,
The solution for given system of equations is: x = 6 and y = 3
Or
(6,3)