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joja [24]
3 years ago
6

5. An airplane takes 4 hr to travel a distance of 4100 km. Another airplane travels at a speed

Mathematics
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

4.969696 hours

Step-by-step explanation:

The distance traveled is shown through the following equations

Distance = velocity * time

This means that

4100=velocity*4

This means that ariplane 1 travles at 1025 km/hr

We can then subtract 200 from this to find that airplane two travels at a speed of 825 km/hr

Now we need to find how long it takes for that plane to travel 4100

So using the same equation

4100=825*time

Divison will tell us that the answer is around 4.9696 hours which is pretty much 5

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the lateral area of a cone is 574 pi cm2. The radius is 19.6 cm. What is the slant height to the nearest tenth of a centimeter?
bulgar [2K]
\bf \textit{lateral area of a cone}\\\\
LA=\pi r\sqrt{r^2+h^2}~~
\begin{cases}
r=radius\\
\sqrt{r^2+h^2}=slant~height\\
-----------\\
LA=574\pi \\
r=19.6
\end{cases}
\\\\\\
574\pi =\pi (19.6)\sqrt{r^2+h^2}\implies \cfrac{574\pi }{19.6\pi }=\sqrt{r^2+h^2}
\\\\\\
\cfrac{574}{19.6}=\sqrt{r^2+h^2}
5 0
2 years ago
Read 2 more answers
mia drove her car at a rate of 60 mph from her home to los angeles. her mother, katrina, made the same trip at a rate of 80 mph,
Ad libitum [116K]

So if Katrina did 80mph and

Mia did 60mph

Lets say the destination is 90 miles away that would take 1hr 30minsfor Mia and

1hr 10mins for Katrina. so that's only a gap of 20minutes not half an hour.

So if the destination was 120miles away it would take Mia 2 hours and Katrina 1hour 30mins that is a gap of 30mins.

ANSWER: 120miles

7 0
3 years ago
If the value of y varies directly with x when y=50, x=4. What is the value of y when x=2
den301095 [7]

Answer:

Step-by-step explanation:

The general equation for a direct variation is y = k*x

So your first step (usually) is to find k

y = k x

when x = 4

then y = 50

  • y = k*x
  • 50 = k * 4              Divide by 4
  • 50 / 4 = k*4/4
  • 12.5 = k

Now you can find the value of y when x = 2

  • y = k*x
  • k = 12.5
  • x = 2
  • y = ?

y = 12.5 * 2

y = 25

8 0
2 years ago
What is the answer to 6x^2+17x+12=0 pls help me and I will help you back
Rina8888 [55]

Answer:

x=−4/3 or x=−3/2

Step-by-step explanation:

Let's solve your equation step-by-step.

6x2+17x+12=0

Step 1: Factor left side of equation.

(3x+4)(2x+3)=0

Step 2: Set factors equal to 0.

3x+4=0 or 2x+3=0

x=−4/3 or x=−3/2

4 0
3 years ago
A line that includes the point (-4, 7) has a slope of 6. What is its equation in point-slope
aalyn [17]
Point slope formula: y-y1=m(x-x1). Answer: y-7=6(x-(-4))
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3 years ago
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