Last sunday, we noticed that at our dance show 1,000 tickets were sold. for an adult, the cost of a ticket was $2 and for a child it was $1. when allwas said and done, we had a total amount of $1,850. write the number ofadult tickets and children's tickets that were sold on sunday.

a+c=1,000

2a+1c=$1850

Multiply top equation by 2 so you can get 2 numbers that cancel each other out

a+c=1,000 (2)

2a+2c=2,000

2a+1c=$1,850

2a-2a=0

cancel out 2a's by subtraction

and since you used subtraction, subtract the rest of the equation.

2c-1c=C

2,000-1850=150

C=150

*150 child tickets sold*

Same process, but for C (though is not necessary because the numbers already cancel out)

a+c=1,000

2a+c=$1850

c-c=0

Again, since you used subtraction, subtract again

1a-2a= -a

1,000-1850= -850

since both are negative, multiply by -1 to make them positive

a=850

*850 adult tickets sold*

850+150= 1,000

(check work)

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Explanation:

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)