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2 years ago

19,212 x 10*2 = 92.3 1932 Help please

Mathematics

1 answer:

umka21 [38]2 years ago

7 0

Please make sure your question is formatted correctly and ill answer it for you.

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Trains headed for destination A arrive at the train station at 15-minute intervals tarting at 7am, where as trains headed for de

grandymaker [24]

Answer: a.) 2/3 ; b.) 7/12

Step-by-step explanation:

Given the following details :

Destination A trains arrives at station at 15 minutes interval starting from 7am

Destination B trains arrives at station at 15 minutes interval starting from 7.05am

A.) if a passenger arrives at station uniformly between 7am and 8am and gets on first train. What proportion of time does the passenger leave from destination A?

To leave for destination A. The passenger has to arrive before train to A departs and after train to B leaves.

Train to B leaves, starting at at 7.05 a.m and at interval of 15 minutes

Train to A leaves at 7.00 am and at interval of 15 minutes.

Therefore,

(Train B departs - train A arrives) (between 7 to 8am)

(7.05 - 7.15) + (7.20 - 7.30) + (7.35 - 7.45) + (7.50 - 8.00) = 40 minutes

Total time = 7.00 - 8.00 = 60 minutes

(40 ÷ 60) = 2/3 or 0.667

B.) If passenger arrives uniformly between 7.10am - 8:10am

(7.10 - 7.15) + (7.20 - 7.30) + (7.35 - 7.45) + (7.50 - 8)

5 + 10 + 10 + 10 = 35

35/60 = 7/12 or 0.583

8 0

3 years ago

4/5(x+5/6)-2/3(x-1/4)=7/6

solniwko [45]

Answer and Step-by-step explanation:

$Hello~let's~solve~your~equation:$

Step 1: Simplify both sides of the equation:

$(\frac{4}{5}) (x)+(\frac{4}{5})(\frac{5}{6})+\frac{-2}{3}x+\frac{1}{6} =\frac{7}{6}$ $(Distribute)$

$\frac{4}{5}x+\frac{2}{3}+\frac{-2}{3}x+\frac{1}{y\6}=\frac{7}{6}$

$(\frac{5}{5}x+ \frac{-2}{3}x )+(\frac{2}{3}+ \frac{1}{6})=\frac{7}{6}$ $(Combine~like~terms)$

$\frac{2}{15}x+\frac{5}{6}=\frac{7}{6}$

Step 2: Subtract 5/6 from both sides:

$\frac{2}{15}x+\frac{5}{6}- \frac{5}{6} =\frac{7}{6} -\frac{5}{6}$

$\frac{2}{15}x=\frac{1}{3}$

Step 3: Multiply both sides by 15/2:

$(\frac{15}{2}) *(\frac{2}{15}x)=(\frac{15}{2})*(\frac{1}{3})$

$x=$ $\frac{5}{2}$

4 0

2 years ago

What is the Value of X?

Yakvenalex [24]

$\dfrac{x+5}{6}=\dfrac{x+5+9}{12}\\\\\dfrac{x+5}{6}=\dfrac{x+14}{12}\ \ \ \ |cross\ multiply\\\\12(x+5)=6(x+14)\\\\12\cdot x+12\cdot5=6\cdot x+6\cdot14\\\\12x+60=6x+84\ \ \ |subtract\ 6x\ from\ both\ sides\\\\6x+60=84\ \ \ \ |subtract\ 60\ from\ both\ sides\\\\6x=24\ \ \ \ |divide\ both\ sides\ by\ 6\\\\\boxed{x=4}$

7 0

3 years ago

Read 2 more answers

Can i have help plzzzzz

leonid [27]

Answers:

Choice C) 1.5 + AB = 3.7

AB = 2.2 cm

====================================================

Explanation:

Segment AC can be cut into two smaller pieces AB and BC. The piece AB is of unknown length for now, while BC is 1.5 units long.

The expression AB+1.5 or 1.5+AB represents us adding those two smaller pieces together. Doing so will lead to the length of AC.

Therefore, 1.5 + AB = 3.7 is one valid equation to set up.

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

To solve that equation, we subtract 1.5 from both sides to undo the addition operation done to AB.

1.5 + AB = 3.7

AB = 3.7 - 1.5

AB = 2.2

Notice how,

1.5 + AB = 1.5 + 2.2 = 3.7

to help confirm our answer.

5 0

2 years ago

Do you multiply area or add it

pogonyaev

It's the formula. Base times height.
For example: if 50 is the base and 10 is the height, just multiply them both.
50 x 10 = 500. And I don't think you add area-that's for finding the perimeter

5 0

3 years ago