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MakcuM [25]
3 years ago
12

Michelle and her 3 pets moved into a new apartment. The management charges a non-refundable deposit of $50 per pet. Her

Mathematics
1 answer:
Orlov [11]3 years ago
4 0

Answer:

3 Months

Step-by-step explanation:

lets look at it like a function y for total spent and x for monthly rent

y=950x+150 950 *3(value of x) 2,850 +150 =3000

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That is a ratio. 7 x 3 = 21 and 13 x 3 = 39.
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Help me in fraction subtraction
Keith_Richards [23]

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-1 every time

Step-by-step explanation:

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Sam opened a money-market account that pays 2% simple interest. He started the account with 7000 dollars and made no further dep
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3 years ago
a team of 10 players is to be selected from a class of 6 girls and 7 boys. match each scenario to its probability
mars1129 [50]

Step-by-step explanation:

The selection of r objects out of n is done in

many ways.

The total number of selections 10 that we can make from 6+7=13 students is  

thus, the sample space of the experiment is 286

A.  

"The probability that a randomly chosen team includes all 6 girls in the class."

total number of group of 10 which include all girls is C(7, 4), because the girls are fixed, and the remaining 4 is to be completed from the 7 boys, which can be done in C(7, 4) many ways.

P(all 6 girls chosen)=35/286=0.12

B.

"The probability that a randomly chosen team has 3 girls and 7 boys."

with the same logic as in A, the number of groups were all 7 boys are in, is  

so the probability is 20/286=0.07

C.

"The probability that a randomly chosen team has either 4 or 6 boys."

case 1: the team has 4 boys and 6 girls

this was already calculated in part A, it is 0.12.

case 2, the team has 6 boys and 4 girls.

there C(7, 6)*C(6, 4) ,many ways of doing this, because any selection of the boys which can be done in C(7, 6) ways, can be combined with any selection of the girls.  

the probability is 105/286=0.367

since  case 1 and case 2 are disjoint, that is either one or the other happen, then we add the probabilities:

0.12+0.367=0.487 (approximately = 0.49)

D.

"The probability that a randomly chosen team has 5 girls and 5 boys."

selecting 5 boys and 5 girls can be done in  

many ways,

so the probability is 126/286=0.44

Did this help??

8 0
3 years ago
I am a number between 20 and 30. When you divide me into 6 equal groups, there is an even number in each group and 2 are left ov
elena55 [62]
26, 26 is the answer. Because u divided by 6 and that gives u 4 with a Remainder of 2
3 0
3 years ago
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