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vivado [14]
2 years ago
7

Find the value of 9x + 4y when x = 4 and y=-5

Mathematics
2 answers:
Dmitry_Shevchenko [17]2 years ago
6 0

Answer:

16

Step-by-step explanation:

9x + 4y

Let x =4 and y = -5

9(4)+ 4(-5)

36 -20

16

omeli [17]2 years ago
4 0

Answer:

16

Step-by-step explanation:

substitute the values into the equation

9(4)+4(-5)

solve...

36-20=16

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2 years ago
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the width of Yun's area model is 7x units or ( x-2 )units .

<u>Step-by-step explanation:</u>

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We know that area of rectangle :

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