How does f(x) = 10x change over the interval from x = 5 to x = 6?
1 answer:
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So hmm notice the picture below
that's the 30-60-90 rule, notice your triangle, the bottom-left-angle is a right angle, 90°, the angle atop is 30°, so the angle on the bottom-right has to be 60°, thus is a 30-60-90 triangle, and as you can see on the triangle on the left in the picture, those are the ratios for it
so 8 will be x, what is the longer leg or side in yours then? well, is
that's the 30-60-90 rule, notice your triangle, the bottom-left-angle is a right angle, 90°, the angle atop is 30°, so the angle on the bottom-right has to be 60°, thus is a 30-60-90 triangle, and as you can see on the triangle on the left in the picture, those are the ratios for it
so 8 will be x, what is the longer leg or side in yours then? well, is
Let's first solve for the $5 off coupon,
The final total is $23.00 with $5 off.
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Now for the final price of the 20% off coupon,
0.2 or 0.20 is decimal form of 20%. Easier to multiply than in percent form!
$5.6 or $5.60 is 20% of 28, we're not done yet!
Lastly, subtract 20% off of 28 (5.6) from 28,
$22.4 or $22.40 is the final after 20% off!
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Q. Which is less after the discounts??
$23.00 or $22.40
A. $22.40 of course which was the 20% off.
Part A : Which coupon should she use ?
Answer : Well, to get a lower price, less to pay, the 20% off coupon is better!
Part B: How much money will she save by using the better coupon?
Answer : $5.6 / $5.60 is the amount she'll save!
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I hope that helps you out!!
Any more questions, please just ask me!!
~ Zoey
The final total is $23.00 with $5 off.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Now for the final price of the 20% off coupon,
0.2 or 0.20 is decimal form of 20%. Easier to multiply than in percent form!
$5.6 or $5.60 is 20% of 28, we're not done yet!
Lastly, subtract 20% off of 28 (5.6) from 28,
$22.4 or $22.40 is the final after 20% off!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q. Which is less after the discounts??
$23.00 or $22.40
A. $22.40 of course which was the 20% off.
Part A : Which coupon should she use ?
Answer : Well, to get a lower price, less to pay, the 20% off coupon is better!
Part B: How much money will she save by using the better coupon?
Answer : $5.6 / $5.60 is the amount she'll save!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
I hope that helps you out!!
Any more questions, please just ask me!!
~ Zoey