This situation can be represented by
y = 33x + 223
y = 32x + 239
I still like substitution, so let’s plug in 33x + 223 into the second equation
33x + 223 = 32x + 239
Move the terms into appropriate sides
33x - 32x = 239 - 223
Combine like terms
x = 16
Then plug in x for any equation
y = 32(16) + 239
y = 751
Erin will have to swim 16 laps for a total of 751 meters
Answer:
2 or 4
Step-by-step explanation:
Since I do not quite understand what you mean by X X, I could think of two answers. If you are doing 5 times X=20, then X = 4, but if you are trying to do 5 times x times x, then x=2.
You would subtract 15 on both sides and then you would have 2x=-14 then you divide both sides by 2 and x would equal -7
Answer: The death is 500, there will be 125 carbon-14 atoms, and after 25,000 years.
Step-by-step explanation:
I just took a test and got it right, I can't do math (;
A square is a special case of a parallelogram, rectangle and a rhombus - they all have 2 pairs of parallel sides. A trapezoid cannot be classified as a square because it only has one pair of parallel sides
