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Phoenix [80]
3 years ago
14

it is 240 miles from boston to new york. If i drive at a speed of 50mph, how long will it take me to reach new york? how much mo

re time would it take if my speed is 10mph faster?
Mathematics
2 answers:
BartSMP [9]3 years ago
7 0

Answer:

It would take you 4.8 hours to reach to New York and it would take you 4 hours if your speed was 10 mph faster.

Step-by-step explanation:

240÷50=4.8

240÷(50+10)=x

240÷60=4

tigry1 [53]3 years ago
5 0

Answer:

4.8

Step-by-step explanation:

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2x5x1742x2133+12/4= PlS hellllp
Fynjy0 [20]

Answer:

37,156,863

Step-by-step explanation:

2 x 5 x 1742 x 2133 + 12/4 =

10 x 1742 x 2133 +12/4 =

17420 x 2133 + 3=

37,156,860 + 3 =

37,156,863

8 0
3 years ago
Root 3 cosec140° - sec140°=4<br>prove that<br><br>​
Lorico [155]

Answer:

Step-by-step explanation:

We are to show that \sqrt{3} cosec140^{0} - sec140^{0} = 4\\

<u>Proof:</u>

From trigonometry identity;

cosec \theta = \frac{1}{sin\theta} \\sec\theta = \frac{1}{cos\theta}

\sqrt{3} cosec140^{0} - sec140^{0} \\= \frac{\sqrt{3} }{sin140} - \frac{1}{cos140} \\= \frac{\sqrt{3}cos140-sin140 }{sin140cos140} \\

From trigonometry, 2sinAcosA = Sin2A

= \frac{\sqrt{3}cos140-sin140 }{sin140cos140} \\\\=  \frac{\sqrt{3}cos140-sin140 }{sin280/2}\\=  \frac{4(\sqrt{3}/2cos140-1/2sin140) }{2sin280}\\\\= \frac{4(\sqrt{3}/2cos140-1/2sin140) }{sin280}\\since sin420 = \sqrt{3}/2 \ and \ cos420 = 1/2  \\ then\\\frac{4(sin420cos140-cos420sin140) }{sin280}

Also note that sin(B-C) = sinBcosC - cosBsinC

sin420cos140 - cos420sin140 = sin(420-140)

The resulting equation becomes;

\frac{4(sin(420-140)) }{sin280}

= \frac{4sin280}{sin280}\\ = 4 \ Proved!

3 0
3 years ago
Suppose that land in downtown Savannah is valued at $20 per square foot. What is
saveliy_v [14]

Answer:

$165554

Step-by-step explanation: I  use the Law of Cosines to find one of the angles of the triangle.  Then use the formula for the area of the triangle: A = (1/2)absinC.

C= 92.856 degree

Area = (1/2)(112)(148)sin(92.856°) = 8277.7 ft^2

To find the price just need to take 8277.7 time 20 = 165554

So the answer is $165554

3 0
1 year ago
Write the word as an inequality. Then solve the inequality. Three less than a number x is more than 15. An inequality that repre
BaLLatris [955]

Answer:

An inequality that represents this word sentence is >. The solution is. x > 17.

Step-by-step explanation:

8 0
3 years ago
The question is in the picture. PLEASE HELP!!!! Thank you!!!;);)
fomenos

Answer:

19/9

Step-by-step explanation:

16/27^2/3=19/9

hope this is helpful! brainly deleted my last response for some reason

8 0
2 years ago
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