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sineoko [7]
3 years ago
15

Zia was driving his truck on the super highway. His speed was recorded by the motorway camera between 6:00am to 8:30am. He cover

ed a distance of 250km during this time. Calculate his average speed between this time duration.
Mathematics
1 answer:
pogonyaev3 years ago
5 0

Answer: 100km/hr

Step-by-step explanation:

From the question, we are told that Zia was driving his truck on the super highway and his speed was recorded by the motorway camera between 6:00am to 8:30am and that he covered a distance of 250km during this time.

Average speed is calculated as distance taken divided by the time used. The time used in this question will be: 8.30am - 6:00am = 2.5 hours.

Speed = Distance/Time

= 250/2.5

= 100km/hour

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alejandro has 70 marbles. darius has M marbles. if alejandro has 10 times as many marbles does darius have?
alex41 [277]

Answer:

70 TIMES 10 IS (700), THATS YOUR ANSWER!

Step-by-step explanation:

3 0
3 years ago
4x - y = 6<br> -5x + y = -9
muminat

Answer:

For the first one the slope is 4

For the second one the slope is 0

Step-by-step explanation:

Subtract 4x from both sides of the equation

<em>-</em><em>y</em><em>=</em><em>6-4x</em>

Multiply each step in <em>-</em><em>y</em><em>=</em><em>6-4x</em><em> </em>by <em>-</em><em>1</em>

<em>y</em><em>=-6</em><em>+</em><em>4x</em>

For slope intercept form <em>y</em><em>=</em><em>mx</em><em>+</em><em>b</em><em> </em>or <em>y</em><em>=</em><em>4x</em><em>+</em><em>6</em>

Slope : 4

Y intercept is (0,6)

To find the x intercept substitute in 0 for y and solve for x. To find the y intercept substitute in 0 for x and solve for y

X intercept: (9/5, 0)

Y intercept: (0,-9)

Slope is 0 using the formula y=mx+b

4 0
3 years ago
Find the inverse function of <br> (Show work)<br><br> f(x)=x^2-4
Olegator [25]

Answer:

The answer to your question is f(x) = \sqrt{x+ 4}

Step-by-step explanation:

                                           f(x) = x² - 4

Process

1.- Change f(x) for y

                                           y = x² - 4

2.- Change "x" for "y" and "y" for "x".

                                           x = y² - 4

3.- Make "y" the object of the equation

                                          y² = x + 4

                                          y = \sqrt{x+ 4}

4.- Change "y" for f(x)

                                          f(x) = \sqrt{x+ 4}

4 0
3 years ago
The electricity bill of sarah's house for the last month was $60, while for this month it is $120. if p is the percent increase
nordsb [41]
<span>The electricity bill of Sarah’s house for the last month was $60, while for this month it is $120. If p is the percent increase in the amount, which proportion can be used to calculate p
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p/100 = (120-60)/60
p/100 = 1
p = 100%</span>
5 0
3 years ago
Expresa en metros<br>20km=​
ser-zykov [4K]

Answer:

20000  m

Step-by-step explanation

multiplica el valor de longitud por 1000

7 0
3 years ago
Read 2 more answers
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