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2 years ago

In your own words, explain what treating your credit card like cash means.

Mathematics

2 answers:

Ganezh [65]2 years ago

5 0

Answer:

It means that you need to not use a lot of money on your credit card. When you have cash, you can only use the money that you have while on a credit card, you don't really have a limit to your use of money.

Step-by-step explanation:

maw [93]2 years ago

3 0

Answer:

Using your credit card like cash will likely make it hard to keep up and keep your interest very high.

Step-by-step explanation:

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a train travels 288km at a uniform speed.if the speed has been 4km per hour more it would have taken one hour less for the same

Lostsunrise [7]

Given:

A train travels 288 km at a uniform speed.

If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

To find:

The initial speed of the train.

Solution:

Let x km/h be the initial speed on the train.

New speed of train = (x+4) km/h

We know that,

$Time=\dfrac{Distance}{Speed}$

Time taken by the train initially to cover 288 km is $\dfrac{288}{x}$ hours.

New time taken by the train to cover 288 km is $\dfrac{288}{x+4}$ hours.

It is given that If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

$\dfrac{288}{x}-\dfrac{288}{x+4}=1$

$\dfrac{288(x+4)-288x}{x(x+4)}=1$

$288x+1152-288x=x^2+4x$

$1152=x^2+4x$

$0=x^2+4x-1152$

Splitting the middle term, we get

$x^2+36x-32x-1152=0$

$x(x+36)-32(x+36)=0$

$(x+36)(x-32)=0$

$x=-36,32$

We know that the speed cannot be negative. So, the only possible value of x is 32.

Therefore, the speed of the train is 32 km/h.

3 0

2 years ago

Seven men and seven women line up at a checkout counter in a store. In how many ways can they line up if the first person in lin

luda_lava [24]

Answer: The required number of ways is 25401600.

Step-by-step explanation: Given that seven men and seven women line up at a checkout counter in a store.

We are to find the number of ways in which they can line up, if the first person in line is a man , and the people in line alternate man, woman, man, woman and so on.

Since the first person is a man, so

for first position, we have 7 options.

There are alternate man and women in the line, so the second person must be a women.

That is, we have 7 options for the second position.

Similarly, for 3rd and 4th positions, we have 6 options for each, and so on.

Therefore, the number of ways in which the 14 persons can line up is

$n=7\times7\times6\times6\times5\times5\times4\times4\times3\times3\times2\times2\times1\times1=7!\times7!=5040\times5040=25401600.$

Thus, the required number of ways is 25401600.

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3 years ago

(-3, 4) and (7.-2)<br> Find slope between the points

navik [9.2K]

Answer:

m=-3/5

Step-by-step explanation:

5 0

3 years ago

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A sporting goods store offers a 40% discount on all golf clubs Rocco spent 20% of the money in his savings account on a golf put

S_A_V [24]

10% of of $48 is an additional discount of $4.80.

Rocco's friend will have to pay $43.20 for the putter.

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3 years ago

256=(1/4)3x+2Solve the exponential equation for x.

Tasya [4]

Answer:

Exact Form:

x =1016 /3

Decimal Form:

x = 338. ¯ 6

Mixed Number Form:

x = 338 2/3

Step-by-step explanation:

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3 years ago