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Andrei [34K]
3 years ago
6

Money off coupons have been circulated to 300 households. Only 2/5 of these were redeemed (used) in the local supermarket to get

a free shampoo. What fraction of the coupons were unused ?
Mathematics
2 answers:
pochemuha3 years ago
6 0
If 2/5 were used wouldn't it make sense that 3/5 were unused
denis23 [38]3 years ago
5 0

Answer:

150

Step-by-step explanation:

So, 300 divided by 2/5 = 750.

When you simplify:

750 - 300 = 450 (NOT DONE YET!)

450 - 300 = 150

150 is the most simplified answer.\

You might be interested in
Of the 12 temporary employees in a certain company, 4 will be hired as permanent employees. If 5 of the 12 temporary employees a
Ivenika [448]

Answer:

<h2>70 possible groups</h2>

Step-by-step explanation:

Given the total number of employee to be equal to 12 temporary employee.

Number of women employee = 5 women

Number of men employee = 12 - 5 = 7 men

If 4 will be hired as permanent employees, the possible ways they can be grouped so that the 4 temporary employees consists of 3 women and 1 man can be done by applying the combination formula.

Combination has to do with selection. For example, if r objects are to be selected from n pool of similar objects, this can be done in <em>nCr </em>different ways.

nCr = \frac{n!}{(n-r)!r!}

According to question, we are to select 3 women from 5 women and 1 man from 7 men. Based on similarity in sex, this can be done in (5C3* 7C1) different ways .

5C3 * 7C1\\=  \frac{5!}{(5-3)!3!} * \frac{7!}{(7-1)!1!}\\\\= \frac{5!}{2!3!} * \frac{7!}{6!1!}\\\\=  \frac{5*4*3!}{3!*2} * \frac{7*6!}{6!*1}\\\\= \frac{20}{2} * \frac{7}{1}\\  \\= 10*7\\\\= 70\ possible\ groups

8 0
3 years ago
Plz help I need help with this one question
olya-2409 [2.1K]

Answer: 99 square cm

Step-by-step explanation:

you cut the height in half, so 6 divided by 2 = 3, if you do that you have to do the same to the width, so again 6 divided by 2 = 3, the length stays the same, so the equation would be 3 X 3 X 11 = 99

5 0
2 years ago
Read 2 more answers
Pls help me with these equations
Viktor [21]
The answers to the questions

5 0
3 years ago
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PLEASE HELP ASAP Determine the period.
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That’s easy_________
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3 years ago
What would the equation be?
denis-greek [22]
Where’s the equation??
4 0
2 years ago
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