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My name is Ann [436]
3 years ago
14

Daca a+b=82 si a:b=9,r2  afla a si b

Mathematics
2 answers:
MArishka [77]3 years ago
7 0
A+b=82
a:b=9,r=2
a=b*9+2
9b+2+b=82
10b=80
b=8
a=8*9+2=72+2=74
Sper ca asta sa te ajute! :)
Avand in vedere ca aceasta este varianta pentru americani intrebarea ta ar trebui stearsa, pentru varianta in limba romana poti intra pe brainly.ro.Succes! ^^
Pavel [41]3 years ago
4 0
a+b=82 \\ a:b=9 \ rest \ 2 \to \boxed{a=9b+2}\\ ---------------\\ 9b+2+b=82 \\ 10b+2=82 \\ 10b=82-2 \\ 10b = 80 \\ \boxed{b= 8} \\ \\ a=9b+2 \\ a=9 \cdot 8 +2 \\ a=72+2 \\ \boxed{a=74}

In a doua relatie aplici teorema impartirii cu rest si inlocuiesti in prima . 
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An equilateral triangle has 3 lines of symmetry

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Step-by-step explanation:

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3 years ago
The sum of <br> 19<br> and Goran's age is <br> 62<br> .
sergey [27]
43 is the answer 62-19= 43
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3 years ago
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kifflom [539]

Answer:

Step-by-step explanation:

a). Stock price arranged as arithmetic sequence will be,

   5, 8, 11, 14

b). Since, explicit formula of an arithmetic sequence is given by,

   a_n=a+(n-1)d

   Here, T_n = nth term of the sequence

   a = first term

   n = number of term

   d = common difference

   From the table attached,

   First term of the sequence 'a' = 5

   Common difference 'd' = 8 - 5 = 3

   Therefore, explicit formula for the given sequence will be,

   a_n=5+3(n-1)

   a_n=2+3n

c). Slope intercept form of the equation will be,

   y = 3x + 2  

d). Input out values for the graph of the given equation,

   x          0           1          2          3

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7 0
3 years ago
a hotel with 75 rooms has 45 for doubles and 30 singles. singles can be booked in any room, but reservations for two or more peo
Hatshy [7]

Answer:

y = 75 - x

Step-by-step explanation:

From the question, we are given variables, and then we can see that

when x = 75 then y = 0

when x = 30 then y = 45

Finding the difference, we have

slope(m) = (45 - 0) / (30 - 75)

slope(m) = 45 / -45

slope(m) = -1

Next, we use the calculated m, to find b, using the formula

y = mx + b

0 = -1 * 75 + b

0 = -75 + b

b = 75

And finally, to get the needed equation, we say that

so y = mX+c

So that

y = -1 * x + 75

y = -x + 75

or y = 75 - x

6 0
2 years ago
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uysha [10]

Answer:

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7. (-1, 2)

Step-by-step explanation:

I hope this helps! Have a nice dayy! :)

3 0
3 years ago
Read 2 more answers
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