Mathematics, 27.01.2020 20:31 youngchapo813p8d9u1

Aman and his wife go shopping. they begin with $200 total. first, they stop for lunch, spending $15.00. then, they buy three items at $20.00 each. later, the wife spends twice what her husband spends. they return home with $20.00 cash. how much did the wife spend?

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Answer from: ashquinn

Amount spent by the wife is $70

Step-by-step explanation:

Given:

the total amount = $200

Amount spent on Lunch = $15.00

They buy three items at $20.00 each

The wife spends twice what her husband spends

They return home with $20.00 cash.

To Find:

Amount spent by the wife = ?

Solution:

Initially after spending $15.00 on lunch they balance cash with them will be

200 - 15.00 = $185

Then they are buy 3 items each of which costs $20.00

So the balance after buying the 3 items will be

= 200 - 3(20)

= 185- 60.00

= $125

Now the wife is spending twice what her husband spends

so let the amount spent be the husband be x then the amount spent by the wife will be 2x.

Now after spending 2x+x amount they are left with $20.00

that is

125 -2x+x = 20

125 -3x = 20

125 -20 = 3x

105 = 3x

$x = \frac{105}{3}$

x = 35

So the wife will be spending 2(35) = $70

Answer from: Quest

the answer is 200

step-by-step explanation:

this is a problem about poisson probabilities. i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.

here's how you can see a poisson distribution coming. when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution. this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot. there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything. the form of the distribution is

probability of n chips = {[e^(-x)]*(x^n)} / (n! )

Answer from: Quest

1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable

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Aman and his wife go shopping. they begin with $200 total. first, they stop for lunch, spending $15....

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