Answer: A. They are both incorrect
Step-by-step explanation:
x=3√2
y=6
z=3√2
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45-45-90=1:1:√2
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solve for x
x is the side accordingly to 90 in the smaller triangle, so it should be the [45] side times √2
3×√2=3√2
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solve for y
y is the side accordingly to 90, so it should be the [45] side times √2
3√2×√2=6
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solve for z
z is the side accordingly to 45 in the bigger triangle, x is also accordingly to 45 in the bigger triangle
z=x
z=3√2
Honestly you wouldnt need to do that kind of problems in real life so i would just use a caculator
Answer:
The correct option is:
100 + 0.8(x - 100) = 250
Step-by-step explanation:
We are given that:
We know that a department store gives 20 % off the portion of the bill that is over 100 dollars.
Total bill is 250 and x is the amount of money she would have spent without the promotion.
The cost to which the discount applies is 0.8 ( x - 100 ).
<em>Finally the equation we get is 100 + 0.8 (x - 100) = 250.</em>
25% is equal to 1/4 so 180 times 3/4 equals $135
Say the first number is x, you would then have x and 6x and then x + 100. If you add all these together you get 8x + 100 = 708. You then subtract both sides by 100 and get 8x = 608. Divide both sides by 8 and you get 608/8 which = 76.
