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3 years ago

Untaxi viaja

Mathematics

1 answer:

juin [17]3 years ago

7 0

Answer:

60 millas por hora.

Step-by-step explanation:

Dado que un taxi viaja a una velocidad de 48 mph para llegar a un destino en 2 horas y media, para determinar cuál seria su velocidad si se tarda dos horas para llegar se debe realizar el siguiente cálculo:

48 x 2.5 = 120

120 / 2 = X

60 = X

Así, su velocidad, si se tardase dos horas en llegar, sería de 60 millas por hora.

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Please help

german

Answer:

17 units

Step-by-step explanation:

Distance between points $(a,b)\,,\,(c,d)$ is given by $\sqrt{(c-a)^2+(d-b)^2}$

The trail starts at P(−2, 2) and goes to Q(5, 2).

Take $(a,b)=(-2,2)\,,\,(c,d)=(5,2)$

$PQ=\sqrt{(5+2)^2+(2-2)^2}=\sqrt{7^2}=7$ units

It goes from Q to R(5, −5)

Take $(a,b)=(5,2)\,,\,(c,d)=(5,-5)$

$QR=\sqrt{(5-5)^2+(-5-2)^2}=\sqrt{(-7)^2}=7$ units

It goes from R to S.

Take $(a,b)=(5,-5)\,,\,(c,d)=(8,-5)$

$RS=\sqrt{(8-5)^2+(-5+5)^2}=\sqrt{3^2}=3$ units

$PQ+QR+RS=7+7+3=17$ units

4 0

3 years ago

A certain ferry moves up and down a river between Town A and B. It takes the ferry two hours to travel to Town A and only an hou

Y_Kistochka [10]

Answer:

The distance between two cities is 60 miles.

Step-by-step explanation:

Time taken to travel from B to A = 2 hours

Time taken to travel from A to B = 1.5 hours

Current speed = 5 mph

Let the speed of ferry in still water = u mph

When the ferry moves with the current, it will taken lesser time (i.e. A to B) and when it moves against the current it will take more time (i.e. B to A).

Let the distance between the two cities A and B = D miles

While moving with the current, speed = $(u+5)\ mph$

While moving against the current, speed = $(u-5)\ mph$

Formula for Distance = Speed $\times$ Time

Distance traveled in each case is same i.e. D.

So,

$D = (u+5) \times 1.5 = (u-5) \times 2\\\Rightarrow 1.5u+7.5=2u-10\\\Rightarrow 0.5u =17.5\\\Rightarrow u = \dfrac{175}{5}\\\Rightarrow u = 35 \ mph$

Now,

$D = (u+5) \times 1.5\\\Rightarrow D =(35+5) \times 1.5\\\Rightarrow D =(40) \times 1.5\\\Rightarrow \bold{D =60\ miles}$

So, the distance between two cities is 60 miles.

6 0

3 years ago

(35+27)÷4×12= what??

Slav-nsk [51]

We have to do BIMDAS

so starting with the brackets we do

35+27

which is 62

62÷4×12

then we work left to right for multiplication and division

62÷4

which is 15.5

then we finish with 15.5×12

which is 186

hope it helps.

8 0

3 years ago

Read 2 more answers

To quickly find the product of a whole number time 1000, add *Blank* Zeroes to the number

egoroff_w [7]

Answer:

Add three zeros to the end.

Step-by-step explanation:

When you add three zeros, the result is equivalent to when multiplying by 1000. For example, 20 times 1000 is 20,000.

8 0

3 years ago

If y - 2x = 3 and y - x = 1, what are the values of x and y?

Viefleur [7K]

Answer:

x = -2

y = -1

Step-by-step explanation:

y - 2x = 3 and y - x = 1

Subtract the second equation from the first

y - 2x = 3

- ( y - x = 1)

––––––––––

-x = 2

Multiply both sides by -1

x = -2

Sustitute x = -2 into the first equation

y - 2(-2) = 3

y + 4 = 3

Subtract 4 from both sides

y = -1

7 0

3 years ago

Read 2 more answers