Answer:
see below
Step-by-step explanation:
You can add any multiple of one equation to the other without changing the solution to the system.
In the first answer choice the first equation is added to the second, and the first equation is left alone.
In the third answer choice, the first equation is subtracted from the second, and the second equation is left alone.
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The other answer choices have strange combinations of sums and differences that result in systems of equations with different answers.
<u>Given</u> -
- A rectangular bathroom mirror is 4 feet tall and 7 feet wide.
ie, length of the mirror, L = 4 feet and breadth of the mirror, B = 7 feet .
<u>To find</u> -
<u>Solution</u> -
As we know to find the area of rectangle we use the formula, Area = L × B
Hence, we will be doing the same.
Area = 4 × 7
Area = 28 square feet
Answer:
Y= -3x + 11
Step-by-step explanation:
Y= -3x + 11 (-3x is your slope and 11 is your y intercept)
Answer:
90$ I'm pretty sure
Step-by-step explanation:
25% of 120=30$, 120-30=90$
To find the answer, you must first convert the sales percentage to a decimal by moving the decimal left two places.
20%=0.20
Then, multiply the total cost by the decimal.
$15.98(0.20)=$3.19
This gives us the amount of the discount. To find the remaining cost, we subtract that number from the original cost to get the answer.
$15.98−$3.19=$12.79
An example of explaining percents I found to help explain it better then I probably could do
The answer is X=5, X=-2 and x=-4
