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3 years ago

Which statements about opposites are true? (Select all that are correct)

Mathematics

2 answers:

ikadub [295]3 years ago

5 0

Please add a picture

elena55 [62]3 years ago

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You need to show a picture

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An airplane is flying from knoxville to new york. The distance it travels in miles, d, is related to the time in seconds, t, by

Zigmanuir [339]

Answer:

0.12 miles is it flying per second.

Step-by-step explanation:

The distance d is related to time t in seconds is given by the equation as follows :

d =0.12 t

We need to find how many miles is it flying per second.

$\dfrac{d}{t}=0.12\\\\\dfrac{\text{miles}}{\text{second}}=0.12$

So, the speed of the airplane is 0.12 miles per second, Hence, 0.12 miles is it flying per second.

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2 years ago

Miguel bikes 23 km per hour and starts at mile 10. Gabby bies 28 km per hour and starts at mile 0. Which system of linear equati

pashok25 [27]

Answer:

y = 23x + 10

y = 28x + 0

Step-by-step explanation:

Given that:

Miguel :

Velocity = 23 km/hr

Starting position = 10 miles

Gabby:

Velocity = 28 km/hr

Starting position = 0 miles

The general form of a linear equation :

y = mx + c

In the scenario above ; the starting points corresponds to the intercept, c

The distance moved per hour (velocity) is the slope (m), which is the change in y per unit change in x

Hence ;

Miguel:

y = 23x + 10

Gabby:

y = 28x + 0

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3 years ago

(A journey by bus takes 45 minutes at 60 km per hour. How fast must a car go to do the same

Vlad [161]

Answer:

The car must drive at 108 km/h to cover the same journey.

Step-by-step explanation:

Given that:

Time taken by bus journey = 45 minutes = $\frac{45}{60} = 0.75\ hour$

Speed of bus = 60 km/h

Distance of the journey = Speed * Time

Distance of the journey = 60 * 0.75 = 45 km

The car needs to cover 45 km in 25 minutes.

25 minutes = $\frac{25}{60}\ hour$

Distance = Speed * Time

45 = $\frac{25}{60}*Speed$

Speed = $45*\frac{60}{25}$

Speed = 108 km/h

Hence,

The car must drive at 108 km/h to cover the same journey.

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2 years ago

HELP PLZ I NEED TO PASS LESSON

Ierofanga [76]

Step-by-step explanation:

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3 years ago

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den301095 [7]

Answer:

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Step-by-step explanation:

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2 years ago