Use signed numbers to solve. A helicopter descended 1200 feet, rose 800 feet, and then descended 450 feet. What was the net gain or loss in altitude? A. lost 2450 ft B. lost 850 ft C. gained 850 ft D. gained 2450 ft

Answer:

yes

Step-by-step explanation:

its a straight line

Let's go:

The circumcenter is the intersection of the perpendicular bisectors on the sides of a triangle. An important property of the circumcenter is the fact that it is equidistant from its vertices. PC = RC = QC:

3x + 7 = 51 - x

3x + x = 51 - 7

4x = 44

x = 11

I hope I helped you.

It will take them 3 hours to meet

Step-by-step explanation:

The given is:

• Jack and Jill live 345 miles apart from one another
• They want to meet for lunch and agree to leave the  same time, drive toward each other, and meet somewhere along the route
• Jack's average rates 60 mph
• Jill's average rate is 55 mph

We need to find how long it will take them to meet

Distance = Speed × Time

∵ They will drive toward each other at the same time and meet

   each other somewhere

- That means they will drive for the same time

∵ Jack's average rates 60 mph for t hours

∴ Jack will drive a distance = 60 × t = 60 t  miles

∵ Jill's average rate is 55 mph for t hours

∴ Jill will drive a distance = 55 × t = 55 t  miles

∵ The distance between Jack and Jill is 345 miles apart

- Add their distance above and equate the sum by 345

∴ 60 t + 55 t = 345

∴ 115 t = 345

- Divide both sides by 115

∴ t = 3 hours

It will take them 3 hours to meet

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Answer:

$32.30

Step-by-step explanation:

19x.30 (to find the 30%)

5.7 needs to be take off of the second shirt.

19 (the first shirt) + (19-5.7) = $32.3

Final answer:

Hate will pay $32.30 for two shirts during the store's sale. This is calculated by adding the full price of the first shirt ($19) and the discounted price of the second shirt ($13.30).

Explanation:

To solve this problem, you need to first calculate the full price of two shirts. Each shirt is priced at $19, so two shirts would cost $38. Next, calculate the 30% discount on the second shirt, which would be 0.30 * $19 = $5.70. This means that the second shirt will cost $19 - $5.70 = $13.30. Therefore, the total cost for two shirts with the discount applied would be $19 (the price of the first shirt) + $13.30 (the reduced price for the second shirt) = $32.30. Thus, Hate will pay $32.30 for two shirts during the store's sale.

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