Suppose each of the following statements is true. laura is in the seventh grade. laura got an a on the mathematics test or sarah got an a on the mathematics test. if sarah got an a on the mathematics test, then laura is not in the seventh grade. if possible, determine the truth value of each of the following statements. carefully explain your reasoning. (a) laura got an a on the mathematics test. (b) sarah got an a on the mathematics test. (c) either laura or sarah did not get an a on the mathematics test

a) is TRUE

b) is FALSE

c) is TRUE

Step-by-step explanation:

Let's call the propositions

P: Laura is in the seventh grade

Q: Laura got an A on the mathematics test

R:Sarah got an A on the mathematics test

Then we have that the following propositions are true

P, Q v R (Q or R) and R---> ~P (if R then not P)

By watching at the truth table attached, we can see that the only row that satisfies all that conditions is the second one highlighted.

From there we can deduct that,

a) is TRUE

b) is FALSE

c) is TRUE

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it