Answer:
The answer is $19.44
Step-by-step explanation:
First, set up a proportion for tax and tip.
Your proportion should be x (the variable) over 28.80, equal to 25 over 100.
Then, cross multiply to set up an equation.
Your equation should be 100x is equal to 720.
Solve the equation by dividing both sides by 100, getting the amount for your variable, x, which should be $7.20.
Next, subtract $7.20 from the original price of 28.80, getting $21.60.
Next, set up the same proportion, except make it so that x is over $21.60 and 10 is over 100.
Cross multiply and set up your equation which is 100x is equal to 216.
Solve the equation by dividing both sides by 100, getting the value if x as $2.16.
Finally, subtract $2.16 from the sale price of $21.60, giving you your answer of $19.44.
This is actually called a mapping diagram but the answer is C.
Because the right circle represents the x variable and the left circle is the y variable. So you just follow the arrows. -3 is pointing to 4 so that's a pair or (-3,4)
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2 rectangle shaped
1) Length = 160 mi ; Width = 40 mi
2) Length = 440 mi - 160 mi ; Width = 240 mi - 70 mi
1 triangle shape
1) base = 70 mi ; height = 440 mi - 160 mi
Area Rectangle 1 = 160 mi * 40 mi = 6,400 mi²
Area Rectangle 2 = 280 mi * 170 mi = 47,600 mi²
Area Triangle 1 = ((440 mi - 160 mi) * 70mi)/2 = (280mi * 70mi)/2 = 9,800 mi²
Total Area = 6,400 mi² + 47,600 mi² + 9,800 mi² = 63,800 mi²
Option A gives the correct answer.Step by step solution is listed below: