A*5+b*2=145
a +b =50 | * -2

5a +2b=145
-2a -2b = -100
----------------------
5a-2a = 145-100
3a= 45
a=45:3
a=15 questions are worth 5 p
b=50-15=35 questions worth 2 p

3 0

2 years ago

Graph the hyperbola with equation quantity x plus 3 squared divided by 25 minus the quantity of y plus 5 squared divided by 4 =

aleksandr82 [10.1K]

Hello,

Please, see the graph in the attached file.

Thanks.

7 0

3 years ago

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Please answer! No links!!!<br><br> Picture is included.

Dovator [93]

Answer:

Step-by-step explanation:

$0.(81) = \frac{81}{99} = \frac{9}{11}$

3 0

2 years ago

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