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labwork [276]
3 years ago
6

alex has a 48 mile trail first half of the time he was biking twice as fast as the second half of the time if he spent 4 hours o

n the road how fast was he biking at first
Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

16 mph

Step-by-step explanation:

Givens:

4 hours total time

48 miles total distance

So our equation should look like this.

48 = 2x(2) + x(2)

Where x = speed second half of trip.

x = 8

x*2 = 16 mph

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Help with slope please....
masha68 [24]

Answer:

1. 1 Calorie Per Minute

2. 5/20 (Simplified = 1/4)

Really Hope This Helps :D

Step One: Identify two points on the line.

Step Two: Select one to be (x1, y1) and the other to be (x2, y2).

Step Three: Use the slope equation to calculate slope.

(Equation For Step Three is  y=mx+b where m is the slope and b is the y-intercept.

Enjoy :D

6 0
4 years ago
Read 2 more answers
Which graph represents the piecewise function?<br><br><br>x+3   if  x&lt;0<br><br>2x if x ≥ 0
kolbaska11 [484]

Answer:

Graph 1 will be the correct one.

Step-by-step explanation:

We are given the piece wise function defined as  

f(x) = x + 3 for x < 0 and f(x) = 2x for x ≥ 0

The first part of the function does not include x = 0.

And, this is in slope-intercept form.

So, slope is 1 i.e. tan Ф = 1, ⇒ Ф = 45°.

And it has y-intercept at (0,3).

So, the conditions are shown in graphs 1 and 3.

Now, the second part of the function equation passes through origin {As the equation is f(x) = 2x}

So, only graph 1 matches both the conditions.

Therefore, graph 1 will be the correct one. (Answer)

7 0
3 years ago
Solve for x in Mathematics​
Misha Larkins [42]

Answer:

I can't help if I don't know the equation

8 0
3 years ago
A tiny songbird called the blackpoll warbler migrates each fall from North America. A tracking study showed one bird flew from V
Alexus [3.1K]

Answer:

<h3>2642km</h3>

Step-by-step explanation:

Given the map coordinates o a bird during travel from Vermont at cordinate (63,45) toto Venezuela at map coordinates (67,10). In order to know how far the bird has travelled, we need to find the distance between the two coordinates first using the formula;

D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Given x₁ = 63, y₁ = 45, x₂ = 67, y₂ = 10

D =\sqrt{(67-63)^2+(10-45)^2}\\ \\D = \sqrt{4^2+(-35)^2} \\\\D = \sqrt{16+1225} \\\\D = \sqrt{1241} \\\\D = 35.2278

If each map coordinate represents 75 kilometers, then the birds distance in km will be 75*35.2278 = 2642.087km

Hence the birds distance in km will be 2642km to the nearest kilometers

4 0
3 years ago
Use the Distributive Property to solve the equation.
aliya0001 [1]

Answer:

x = -6

Step-by-step explanation:

-5(x + 3) = 15

Distribute the -5

-5x -15 =15

Add 15 to each side

-5x-15+15 =15+15

-5x = 30

Divide each side by -5

-5x/-5 = 30/-5

x =-6

8 0
4 years ago
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