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Anna35 [415]
2 years ago
7

The Martinez family has $1543 a month income. They have $978 and fixed expenses, money they have to spend. How much money do the

y have left after the fixed expenses
Mathematics
1 answer:
KengaRu [80]2 years ago
8 0

Answer:

$565

Step-by-step explanation:

1543-978=565

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The city plans a roadway to have trees every mile. If the path is miles long, how many trees will the city need?
Elina [12.6K]

Answer:

32

Step-by-step explanation:

the country would need 30 to 33 trees

7 0
3 years ago
Assume that random guesses are made for seven multiple choice questions on an SAT​ test, so that there are equals 7 ​trials, eac
NeTakaya

Answer: 0.5

Step-by-step explanation:

Formula for binomial probability :-

P(x)=^nC_xp^x(1-p)^{n-x}, where P(x) is the probability of getting success in x trials , n is the total number of trials and p is the probability of getting success in each trial.

Given : The number of trails : n=7

The probability of success​ for each trial : p=0.5

Now, the probability that the number x of correct answers is fewer than 4 will be :-

P(x

Hence, the probability that the number x of correct answers is fewer than 4 = 0.5

4 0
3 years ago
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A rectangle's length is three times its width. Let w denote the rectangle's width. What polynomial represents the rectangle's ar
Ket [755]
<span>A = l x w
Since 
l = 3w

Substitute the l with 3w
The formula will be

A = 3w + w
A = 4w

An example:
The given known values are: Length of 4 cm Width is unknown Perimeter is 34 cm Find the dimensions of the rectangle.   Since the geometric formula for perimeter is: </span>
P= 2 (l + w) 
L = 2w – 4 cm 
W =?   
Derivation and solution: 
34 = 2 (2w - 4) + 2w <span>
34 =  4w – 8 + 2w</span> 
42 = 6w 42/6 = w 
W = 7 cm   

34 = 2l + 2(7) 
34 = 2l + 14 
2l = 34 – 14 
2l = 20 
L = 20/2 
L = 10 cm<span> <span>
</span></span>

7 0
3 years ago
Please help me ASAP
Salsk061 [2.6K]

Answer:

Two.

Step-by-step explanation:

Simultaneous equation is a Finite sets of equations whose common solutions are sought.

Two solutions in the equation above is sought.

5 0
2 years ago
When Pheobe asked her friends about their Thanksgiving, 35% of her 60 friends said they had pumpkin pie for dessert. How many fr
nataly862011 [7]

Answer:

21

Step-by-step explanation:

I dunno, I used a calculator B)

4 0
2 years ago
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