Mathematics, 20.02.2020 02:57 hunnytoledo145

If x1 is the number of cars taking the ABD route and x2 is the number of cars taking the ACT route, write a linear expression for the travel time of a car taking the ABD route. Do the same for the ADD route.

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Answer from: SillyEve

The travel time for the car = Distance(Route-ABD)/Velocity of the car

t = d/v, where t is the travel time of the car, d is the distance traveled by the car along ABD, v is the velocity of the car.

For ADD route, ADD distance not mentioned in the question.

Notwithstanding, the travel time is given as :

t = Distance (ADD)/v

Step-by-step explanation:

The velocity is a physical quantity, which is defined as the rate of change of displacement with time.

That is, velocity = Displacement/time.

Velocity(or speed) = Distance covered/traveled time.

The car is the question above traveled a distance(say d-meters) in the given route(ABD). It covered the distance in time, t(secs) with a velocity of v(m/s).

From the equation for velocity

v = d/t.

Making t the subject of formula,

travel time, t = d/v

Answer from: Quest

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation:

Answer from: Quest

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

$4/2 = 2\\7/3.5=2\\8/4=2\\10/5=2$

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

$y=\frac{x}{2}$

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

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If x1 is the number of cars taking the ABD route and x2 is the number of cars taking the ACT route,...