Ask question

Ask question

All categories

3 years ago

9

Dave walked to his friend's house at a rate of 4mph and returned back biking at a rate of 10mph. If it took him 18 minutes longe

r to walk than to bike, what was the total distance of the round trip

1 answer:

schepotkina [342]3 years ago

4 0

Answer:

4 miles

Step-by-step explanation:

You might be interested in

Find the midpoint of the line using the midpoint formula.<br> Midpoint of AB:______

dimaraw [331]

Answer: MP=(1,1)

Step-by-step explanation:

$MP= (\frac{x_1+x_2}{2})(\frac{y_1+y_2}{2})$

$MP= (\frac{-2+4}{2})(\frac{-3+5}{2})$ -2+4=2 -3+5=2

$MP= (\frac{2}{2})(\frac{2}{2})$ 2/2=1

$MP= (1,1)$

8 0

3 years ago

The graphs of the equation y = 4x + 1 and y - kx = 10 are perpendicular when k = _______?

Ann [662]

Answer:

$k=-\frac{1}{4}$

Step-by-step explanation:

we have

Line 1

$y=4x+1$

Equation in slope intercept form

The slope is equal to

$m_1=4$

Line 2

$y-kx=10$

$y=kx+10$

Equation in slope intercept form

The slope is equal to

$m_2=k$

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of the slopes is equal to -1)

so

$m_1*m_2=-1$

substitute

$(4)(k)=-1$

$k=-\frac{1}{4}$

3 0

3 years ago

I need help with 47 and 48 please please!

sergey [27]

48. B and 47 is out of c and b

7 0

3 years ago

Which is the only fraction that must be represented by a nonterminating decimal?

Aleks04 [339]

A is incorrect - In decimal form, 7/5 is 1.4

B is incorrect - In decimal form, 7/4 is 1.75

D is incorrect - In decimal form, 7/2 is 3.5

The answer is C. 7/4; In decimal form, 7/4 is 2.33333333.... (this represents a terminating decimal)

3 0

3 years ago

. A spinner contains numbers 1-20. What

alexira [117]

Answer:

6/30 for a multiple of 3 and 4/20 for a multiple of 5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers