All categories

2 years ago

A turtle swims at a speed of 12 mph. A boy swims at a speed of 4.4 ft per s.

1 answer:

8 0

The turtle`s speed:
v t = 12 miles / hour = /*5,280
= 63,360 ft / hour = / : 3
= 21,120 yards / hour = / : 60
= 352 yards / minute
The boy`s speed:
v b = 4.4 ft/ s = / * 60/3
= 4.4 * 20 yards / minuet = 88 yards / minute
v t : v b = 352 : 88 = 4
The turtle swims 4 times faster than the boy.

You might be interested in

a satellite's escape velocity is 6.5 mi/sec, the radius of the earth is 3960 mi, and the earth's gravitational constant is 32.2

Artyom0805 [142]

Answer:

$23.89x10^{6}$ ft

Step-by-step explanation:

$\frac{V^{2} }{R^{2} } = \frac{2g}{R+h} \\$ This is the formula to find satellite's escape velocity V , where R is earth's radius, h is the satellite's height from the earth surface and g is the earth's gravitational constant.

$R^{2}(R+h) \frac{V^{2} }{R^{2} } =R^{2} (R+h)\frac{2g}{R+h}$ (Multiplying to clear the fractions)

(R+h) $V^{2} =R^{2} 2g$

$R+h=\frac{2R^{2}g }{V^{2} }$

$h= \frac{2R^{2} g}{V^{2} } -R$

Now, we can determine height of satellite from the surface of the earth

by putting the values in above equation

$h= \frac{2 * (3960)^{2}*32.2 }{6.5^{2} } -3960\\h= 23.902 x10^{6} - 3960\\ h=23.89x10^{6} ft$

5 0

2 years ago

A student worked out an equation and below is his solution. is the answer correct? If not, where was the error and what is the c

Lelu [443]

Answer:

His answer is wrong.

Step-by-step explanation:

-4(6-R)=12 <-- Since R is negative, -4 times -R results in a positive so, 4R.

-24+4R=12

+24 +24

--------------------

4R = 36

R= 9

4 0

3 years ago

Find the value of x 7 17 x*

AlladinOne [14]

Answer:

the awnser is 24

8 0

2 years ago

Eric created a rectangular patio using 1-Foot square paving stones,which are sold in batches by the dozen.The patio measures 7 f

Paladinen [302]

His patio needs 56 stones because 8 multiplied by 7 equals 56. So if the paving stones are sold in batches of 12 (a dozen is equal to 12) then we need to find how many times 12 goes into 56. 12 cannot go into 56 evenly, but 12x5=60 which will be more than enough stones for Eric's patio. So Eric will need 5 batches of paving stones for his patio.

7 0

2 years ago

Number 11. Write 6^-3 =(1/216) correct answer will get brainliest

riadik2000 [5.3K]

Answer:

-3 = log₆(1/216)

Step-by-step explanation:

Remember that when writing logarithm, the answer is:

exponent = log(base in subscript)y

also note that in exponential form, it looks like: y = b^x

Change

y = b^x = "(1/216) = 6^-3"

-3 = log₆(1/216)

-3 = log₆(1/216) is your answer

6 0

2 years ago