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3 years ago

If a bus with an average speed of 40 miles per hour travels for 30 minutes, how far will it have gone?

Mathematics

2 answers:

Sonja [21]3 years ago

8 0

In this question, it is given that

If a bus with an average speed of 40 miles per hour travels for 30 minutes.

Here time is 30 minutes. And 1 hour have 60 minutes. SO the given times is 0.5 hour .

And the speed is 40 miles per hour .

We have to find the distance. And distance is the product of speed and time. That is

$Distance = 40 *0.5 = 20 \ miles$

velikii [3]3 years ago

3 0

One hour is 60 minutes. since you're looking for 30 minutes, do 40 x 30 and divide by 60.

Answer: 20 miles in 30 minutes

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Write the equation of the line that passes through (2, 4) and has a slope of –1 in point-slope form.

grin007 [14]

y - y1 = m (x - x1)

where m is the slope and (x1 , y1) is the point given

We are given:

m= -1

the point is (2, 4)

Then:

y - y1 = m (x - x1)
y-4 = (-1) (x-2)
y - 4 = -x + 2
y = -x +2 +4

y = -x + 6

Hope that helps you

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3 years ago

A rectangle is drawn so the width is 5 inches longer than

CaHeK987 [17]

Answer:

$length = l\\width = 5 + l\\Diagonal = 36\\diagonal^2 = (5+l)^2 + l^2\\36^2 = 25 + l^2 +10l + l^2\\1296 = 2l^2 +10l +25 \\2l^2 +10l=1271\\\\l_1=\frac{-10+2\sqrt{2567}}{2\cdot \:2},\:l_2=\frac{-10-2\sqrt{2567}}{2\cdot \:2}$

$l_1=\frac{-5+\sqrt{2567}}{2},\:l_2=\frac{-5-\sqrt{2567}}{2}$

clearly,

$l_{2} \ is \ a \ negative\ number$

So we consider

$l_{1} =\frac{-5+\sqrt{2567}}{2} = 22.83$

Therefore height = 22.8inches

6 0

2 years ago

Simplifie 8m2+3m+m3+4

mash [69]

Answer:

$15+m^{6}$

Step-by-step explanation:

$8m^{2} +3m+m^{3}+4\\8+4+3+m^{3} +m^{2} +m\\8+4+3+m^{6} \\15+m^{6}$

5 0

2 years ago

What would be the answer for 16.058-1.2, and how would you solve it. Please and thankyou.

dimaraw [331]

Answer:

14.858

Step-by-step explanation:

you get your 1.2and add 2 more 0s to get it to the same amount of numerical digits as 16.058 then you write ur subtraction

16.058

-1.200

_____

and u subtract it normally

so ull get 14.858

6 0

3 years ago

Rhonda drove 51 miles per hour for 5 hours. She then drove 55 miles per hour for x hours. Which expression is equivalent to the

lawyer [7]

The expression equivalent to the total distance Rhonda drove is 51x = 275

Given:

Distance 1:

Number of miles = 51 miles

Number of hours = 5 hours

Distance 2:

Number of miles = 55 miles

Number of hours = x hours

Ratio of miles to number of hours = 51 miles : 5 hours

Ratio of miles to number of hours = 55 miles : x hours

Equate the ratios

51 : 5 = 55 : x

51/5 = 55/x

cross product

51 × x = 5 × 55

51x = 275

x = 275 / 51

x = 5.392156862745098

Approximately,

x = 5.4 hours

Therefore, the number of hours taken to travel 55 miles is 5.4 hours

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7 0

3 years ago