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Marrrta [24]
3 years ago
13

Find the number of pairs (a,b) of integers such that a+2/a+5=b/3

Mathematics
1 answer:
Viktor [21]3 years ago
3 0

Answer:

  6

Step-by-step explanation:

The expression can be rearranged to ...

  b = 3 -9/(a+5)

In order for b to be an integer, (a+5) must be an integer divisor of 9. There are exactly 6 of those: ±1, ±3, ±9.

The attached table shows the values (a, b) = (x₁, f(x₁)).

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faltersainse [42]
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= (10-6)/(8-0)
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8 0
2 years ago
In the parallelogram below, solve for X<br> Options<br> 4<br> 10<br> 25<br> 100
Sever21 [200]

Answer:

4

Step-by-step explanation:

The sides of a parallelogram are parallel, which means 25x and 100 are alternate angles and therefore equal.

25x=100

x=4

7 0
2 years ago
Which expression can you use to find the area of the rectangle? 3 times 6, 4 times 6 ,9 times 4. 4 times 3
Verdich [7]

Answer:

9 times 4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Simplify this math problem show Your work
loris [4]

9514 1404 393

Answer:

  (p -9q)/(4p² +12pq)

Step-by-step explanation:

The least common denominator will be the product of the denominators.

  \dfrac{-3}{4p}+\dfrac{1}{p+3q}=\dfrac{-3(p+3q)+1(4p)}{(4p)(p+3q)}=\boxed{\dfrac{p-9q}{4p^2+12pq}}

5 0
3 years ago
Zack, Jack and Sasha earned £250 altogether delivering leaflets.
AleksAgata [21]

Answer:

Zack earned £125, Jack earned £75, and Sasha earned £50

Step-by-step explanation:

Considering the number of leaflets delivered

Zack 50%, Jack 30% and Sasha 20%

Total delivered = 50 + 30 + 20 = 100%

If they earn £250 on the 100% delivery, then each will have as shown below

Zack = (50/100)*250

= 5*25

= £125

Jack = (30/100)*250

= 3*25

= £75

Sasha = (20/100)*250

=2*25

= £50

5 0
3 years ago
Read 2 more answers
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