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oksian1 [2.3K]
3 years ago
6

Ted and Wayne are both travelling. Ted drives at an average speed of 90 km/h. Wayne left 30 mins later then Ted and drove at an

average speed of 100 km/h.
A)How long did it take Wayne to catch up to Ted?

B)How far have they driven at this point?

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0
It took 2 hours and 15 minutes to catch up

they have driven about 225 kilometers at this point.
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How do get the area. Or how do I even split the shapes
MA_775_DIABLO [31]
Answer:

You spilt up the shapes into triangles, rectangles, squares, etc
The equation for rectangles and squares is
A=l•w
(Area equals length times width)

The equation for triangles is
A=(1/2)b•h
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8 0
3 years ago
What is the sum of the rational expressions below? X/4 + 3/5x
Andrew [12]

Answer:

The answer is  \frac{5x^2+12}{20x} .

Step-by-step explanation:

Given:

X/4 + 3/5x.

Now, to find the sum of the rational expressions.

\frac{x}{4} +\frac{3}{5x}

So, to solve it by adding:

\frac{x}{4} +\frac{3}{5x}

=\frac{5x\times x+3\times 4}{5x(4)}

=\frac{5x^2+12}{20x}

Therefore, the answer is  \frac{5x^2+12}{20x} .

4 0
3 years ago
Aubrey and Charlie are driving to a city that is 120 mi from their house. They have already traveled 20 mi, and they are driving
Zarrin [17]

Answer:  The function that models the distance they drive is

f(x) = 50x + 20 where x is the time in hours

reasonable domain:  0 ≤ x ≤ 3

Step-by-step explanation:

examples:

95 = 50(1.5) + 20 After driving another hour and a half, they will have driven a total of 95 miles.

120 = 50(2) + 20  This means that after 2 more hours they will reach their destination.

There is a little ambiguity in the question. The function could be written as if they are starting out.  f(x) = 50t  

20 = 50(.4)  At 50 mph it took .4 hours to go 20 miles.

120 = 5(2.4)  The whole trip took 2.4 hours.

7 0
3 years ago
4(2x-3) is greater than or equal to 4(x-4)
mylen [45]

Answer:    x ≥ -1

<u>Step-by-step explanation:</u>

4(2x - 3) ≥ 4(x - 4)

8x - 12 ≥ 4x - 16       <em>distributed 4 into 2x - 3</em>

4x - 12 ≥ -16              <em>subtracted 4x from both sides</em>

4x ≥ -4                       <em>added 12 to both sides</em>

 x ≥ -1                        <em>divided both sides by 4</em>


Graph:    -1 -------------→

Interval Notation: [ -1, ∞ )

8 0
4 years ago
Solve x-18 = -5. Also, can you explain it to me, thanks?
REY [17]

You need to solve for x (get x by itself)

x - 18 = -5    Add 18 on both sides

x - 18 + 18 = -5 + 18

x = 13

8 0
4 years ago
Read 2 more answers
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