Answer:
she should buy 3 quarts and keep the remainder which can possibly cover 30 square feet.
Answer:
11
Step-by-step explanation:
39-6=33
33/3=11
1. System B from System A by replacing one equation with itself where the same quantity is added to both sides
2. Yes, both system A and system B are equivalent and therefore has the same solution
<h3>How to prove the statements</h3>
System A
x − 4y= 1
5x + 6y= −5
System B
x = 1+4y
5x + 6y= −5
1. System B can be gotten from system A by
from the first equation of A
x − 4y= 1
Make 'x' subject of formula
x = 1 + 4y
This makes it equal to tat of system B
Thus, replacing one equation with itself where the same quantity is added to both sides
2. System A
x = 1 + 4y
5x + 6y= −5
System B
x = 1 + 4y
5x + 6y= −5
From the above equations, we can see that both system A and system B are equivalent and therefore has the same solution.
Learn more about linear equations here:
brainly.com/question/4074386
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Answer:
a(4) = -18
Step-by-step explanation:
The fourth term in the sequence is when n = 4. Substitute n = 4 into the rule a(n)=-6-4(n-1).
a(4) = -6 - 4(4-1)
a(4) = -6 - 4(3)
a(4) = -6 - 12
a(4) = -18
