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Evgesh-ka [11]
3 years ago
11

Two numbers in a ratio 5:4 . Their sun is 720.find the bigger number.show your reasoning

Mathematics
1 answer:
alina1380 [7]3 years ago
6 0
5x + 4x = 720
9x = 720 (divide by 9)
X= 80
In order to get the bigger ratio, which is 5, you would substitute x for 80. (I'm bad at explaining)
Work:
5(80)= 400
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Answer:

See Explanation

Step-by-step explanation:

a) Additive inverse of −2

  • the additive inverse of a number a is the number that, when added to 'a', yields zero. This number is also known as the opposite (number), sign change, and negation.
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d). multiplicative identity of 19

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e) multiplicative inverse of 7

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see attachment

Step-by-step explanation:

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The graph of the left hand side of this equation is

y =  -  \frac{1}{2}{x}^{2}  + 2

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