On a bicycle, you can travel 30 miles in 5 hours. At this

Mathematics

2 answers:

BaLLatris [955]3 years ago

8 0

Answer:

you can travel 12 miles in 2 hours

Step-by-step explanation:

30 / 5 is 6 and 6 x 2 is 12

tensa zangetsu [6.8K]3 years ago

7 0

Answer: i think it's 12 miles.

Step-by-step explanation:

because 30 miles divided by 5 =6 mph is the bicycle's average rate.and 6mph times 2 = 12 miles.

You might be interested in

5/6 of all the money in Salma's bank account is ₹55,000. how much money does Salma have in her bank account?

Vedmedyk [2.9K]

Answer:

₹66,000

Step-by-step explanation:

If 5/6 is 55,000 then just multiply 55,000 by the reciprocal 6/5 to get 66,000

8 0

1 year ago

A rectangular poster is to contain 722 square inches of print. the margins at the top and bottom of the poster are to be 2 inche

Delvig [45]

Let
x ----------> the height of the whole poster
y ----------> the width of the whole poster

We need to minimize the area A=x*y

we know that
(x-4)*(y-2)=722
(y-2)=722/(x-4)
(y)=[722/(x-4)]+2

so
A(x)=x*y--------->A(x)=x*{[722/(x-4)]+2}
Need to minimize this function over x > 4

find the derivative------> A1 (x)
A1(x)=2*[8x²-8x-1428]/[(x-4)²]

for A1(x)=0
8x²-8x-1428=0
using a graph tool
gives x=13.87 in

(y)=[722/(x-4)]+2

y=[2x+714]/[x-4]-----> y=[2*13.87+714]/[13.87-4]-----> y=75.15 in

the answer is
the dimensions of the poster will be
the height of the whole poster is 13.87 in
the width of the whole poster is 75.15 in

6 0

3 years ago

Graph Photo attached

Andreas93 [3]

$p(green) = \frac{no \: of \: green}{total \: } \\ p = \frac{8}{40} \times 100\% \\ p = 20\% \\$
option 2

3 0

2 years ago

What is the range of arcsinx

Aleonysh [2.5K]

Y= arcsin(x) is equivalent to sin(y) = x

we know that -1≤x+1, hence the range of y is: -π/2≤y≤+π/2

3 0

3 years ago

One person wants to get a 95% z-confidence interval with a margin of error of at most 15 based on a population standard deviatio

Bess [88]

Answer:

$n=(\frac{1.96(60)}{15})^2 =61.46 \approx 62$

So the answer for this case would be n=62 rounded up to the nearest integer

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean for the sample