12. Maria is working on the multiplication problem 38 x 25. Maria says, 4 times 25 is 100, so 40 times 25 is 1000. Now take away 2, so the answer is 998. Is Maria's method correct or not? If it is correct, write equations that incorporate Maria's work and that show why it's correct. If Maria's reasoning is not correct, work with portions that are right to correct Maria's work, and write a string of equations that corresponds to your corrected method for calculating Write your equations in the following form: 38 x 25= some expressions some expressions

Q: This is the correct solution and answer already for the problem. My question is, (I have encircled…

A: I use Inverse mathematics operations

Q: In 2015, the value of the freight, in dollars, that came into Florida was 3.46 x 10(11).  The value…

A: Given, the value of the freight, in dollars, that came into Florida was 3.46 x 1011   The value of…

Q: In a chess match a win of 1 game counts 1 point, a draw counts as 1/2 point and a loss as 0. after…

A: We have given a chess game Number of matches = 14 Win of 1 game = 1 point Draw of 1 game = 1/2 = 0.5…

Q: Johnny is solving the multiplication problem 13.8 × 1.42 by multiplying longhand. Ignoring the…

A: He can estimate it by the following method, We can write, 13.8 as 138/10 and 1.42 as 142/100

Q: I don't understand where the first square root of -3 went. I understand all of the rest of the…

A:

Q: one I need he

A: 8) Here we have to select the situation  which could be represented by the multiplication expression…

Q: Please help me understand how to solve: 22n  +1 Note: The exponent 2# = 2 ∙ 2 ∙∙∙ 2, where the…

A:

Q: There are four consecutive integers such that product of the first and third integers is 161 less…

A: Given there are four consecutive numbers such that product of the first and third integers is 161…

Q: An author works on a new book and after writing a few chapters, begins a new plan to write 600 words…

A:

Q: or purposes of this problem only, the width is shorter than the length.) ngth - inches idth = inches…

A:

Q: Why is .5x.5.x.5x.5x.5 =0.03125 But .5x4=2 And 54=0.03125 Aren't they all the same equations just…

A:

Q: tailwind. The return trip takes 3 hours. Summarize this information, along  with the algebraic…

A:

Q: I want to start training to become an Olympic swimmer. I currently have a square pool in my backyard…

A:

Q: Why is it that we say 25 has two square roots (5 and -5), but we write √25 = 5?

A: Since we know that every positive real number has two real square root. So we can say 25 has two…

Q: the length, width and height of the rectangular shaped glasses (in terms of inches) can be…

A: Given: The length, width and height of the rectangular shaped glasses (in terms of inches) can be…

Q: -12=-3v in the simplest form.

A:

Q: Expand (3x? – 2y)5 and simplify.

A:

Q: I was trying to solve chapter 1 section 1.2 CP6. I saw the explanation but I was confused to why…

A: Given that, the equation is

Q: Keisha says that it’s easy to multiply even numbers by 5 because you just take half of the number…

A: