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3 years ago

A Jet travels 460 miles in 2 hours. At this rate, how far could the jet fly in 8 hours?

Mathematics

2 answers:

kogti [31]3 years ago

7 0

The jet can fly 1840 miles in 8 hours

grigory [225]3 years ago

3 0

Answer:

1840 miles

Step-by-step explanation:

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Two doctors is what percent of 25 doctors

Anton [14]

Answer:

0. 8?

Step-by-step explanation:

you have to divide 2 by 25. If you have the percent and want to find the nonpercent like 2 of 25, then you multiply . 08 by 25 and you get 2

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3 years ago

the area of a square whose sides have length x cm is increasing at the rate of 12cm²/s. how fast is the length of a side increas

katovenus [111]

Answer:

0.67 cm/s

Step-by-step explanation:

The area of a square is given by :

$A=x^2$ ....(1)

Where

x is the side of a square

$\dfrac{dA}{dt}=12\ cm^2/s$

Differentiating equation (1) wrt t.

$\dfrac{dA}{dt}=2x\times \dfrac{dx}{dt}$

When A = 81cm², the side of the square, x = 9 cm

Put all the values,

$12=2\times 9\times \dfrac{dx}{dt}\\\\\dfrac{dx}{dt}=\dfrac{2}{3}\\\\\dfrac{dx}{dt}=0.67\ cm/s$

So, the length of the side of a square is changing at the rate of 0.67 cm/s.

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3 years ago

What is the solution to this equation? 2x+4=16

AlekseyPX

$2x+4=16\\\\2x=12\\\\x=6$

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3 years ago

Find the perimeter of the image below:

Len [333]

<span>d. 40 units because i counted all the way to the next dont and it gave me the frist answer and i keep doing that unitl i figure out all the sides</span>

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3 years ago

Read 2 more answers

What value of x is in the solution set of 2(3x-1) ≥4x-6

astra-53 [7]

Answer:

$\large\boxed{x\geq-2\to x\in[-2,\ \infty)}$

Step-by-step explanation:

$2(3x-1)\geq4x-6\qquad\text{use distributive property}\ a(b-c)=ab-ac\\\\(2)(3x)-(2)(1)\geq4x-6\\\\6x-2\geq4x-6\qquad\text{add 2 to both sides}\\\\6x\geq4x-4\qquad\text{subtract 4x from both sides}\\\\2x\geq-4\qquad\text{divide both sides by 2}\\\\x\geq-2$

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3 years ago