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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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What is 2,400 milliliters converted into liters
BARSIC [14]

Answer:

2.4 liters

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Pls help with these questions I can give brainliest thank you all! 9 a and b
nata0808 [166]

Answer:

A. 8 1/4 * 11 1/2 * 14=1328 1/4 ft^2

OR

8 1/4 height times 11 1/2 width times 14 in length equals 1328 1/4 feet squared

B. 8 1/4 * 14 1/2 * 14=1674 3/4

OR

8 1/4 height times 11 1/2 width plus 3 so 14 1/2 width times 14 equals 1674 3/4 feet squared

Step-by-step explanation:

7 0
3 years ago
Which of the following is the equation of a line that passes through the points (1,6) and (2,1)
anastassius [24]

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (1, 6) and (x₂, y₂ ) = (2, 1)

m = \frac{1-6}{2-1} = - 5, hence

y = - 5x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (1, 6), then

6 = - 5 + c ⇒ c = 6 + 5 = 11

y = - 5x + 11 → A

5 0
3 years ago
Read 2 more answers
A motorcycle shop maintains an inventory of four times as many new bikes. If there are 80 new bikes, how many used bikes are now
Ghella [55]
Answer: There are 20 used bikes



Explanation: If there are 4 times the used bikes then you would have to do 80 divided by 4 and there’s the answer
7 0
3 years ago
Read 2 more answers
50 points please answer
inn [45]

Answer:

D. 30 kilometers

Step-by-step explanation:

Add all the given distances relative to the map together:

6.5 + 9.5 + 4 = 20

Multiply that by the scale to convert centimeters to kilometers:

20 x 1.5 = <u>30</u>

Your answer is 30 kilometers.

You also could have gotten the same answer by multiplying each number by the scale and then adding those together but that is slightly more work so the way I showed is more convenient.

6 0
2 years ago
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