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suter [353]
2 years ago
11

Need help fast!! Please help

Mathematics
2 answers:
mel-nik [20]2 years ago
5 0

Answer:

10.5

Step-by-step explanation:

your equation: DT = DH + HT

HT = 2DH

so now your equation is DT = DH + 2DH

plug in your values: 3.5 + 2(3.5)

you get DH = 10.5

Luden [163]2 years ago
4 0

Answer:

I am pretty sure it is 10.5

Step-by-step explanation:

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The average speed of a car during 5 hours is 50 miles per hour. What is the total distance traveled by the car?
Paraphin [41]

Answer:

250 miles

Step-by-step explanation:

So we know that the time (t) equals 5 hours and that the rate (r) equals 50 mph. So knowing that, we can use the formula t*r=distance. We plug in the numbers and we get 250 miles.

Another way to think about this is, since we go 5 hours and 50 miles per hour, every hour we go 50 miles and we do that for 5 hours, so we go 50, 100, 150, 200, 250.  

6 0
2 years ago
Which of the following could be the perimeter of a rectangle with an area of 16 square inches?
Butoxors [25]

no doubt it's 16 inches

8 0
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NO LINKS Write an inequality for x that would give this rectangle an AREA of at least 300ft sq2. the numbers are x+5ft 3ft
Angelina_Jolie [31]

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7 0
2 years ago
The ellipse 14x2+2x+y2=114x2+2x+y2=1 has its center at the point (b,c)(b,c) where
Nana76 [90]
18x^2 + 2x + y^2 = 1 
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<span>==> 18(x^2 + x/9 + 1/324) + y^2 = 1 + 1/18 </span>
<span>==> 18(x + 1/18)^2 + y^2 = 19/18 </span>
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<span>By comparing this to the standard form of an ellipse, the center is at (-1/18, 0). </span>
6 0
3 years ago
A submarine was situated 800 feet below sea level. If it ascends 350 feet,
Lesechka [4]

Answer:

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Step-by-step explanation:

<em>ascend = move up = add</em>

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4 0
3 years ago
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