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Tasya [4]
3 years ago
7

If DF = 9x - 39, find EF

Mathematics
1 answer:
andrezito [222]3 years ago
8 0

Answer:

EF = 58 units

Step-by-step explanation:

Given:

DF = 9x - 39

DE = 47

EF = 3x + 10

Find:

EF

Computation:

DF = DE + EF

9x - 39 = 47 + 3x + 10

9x - 3x = 47 + 39 + 10

6x = 96

x = 16

EF = 3x + 10

EF = 3(16) + 10

EF = 58 units

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Answer:

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Step-by-step explanation:

The current probability of picking a red ball is \frac{x}{15}. When 5 more balls are added, the probability is 3/4. We can write a ratio for this problem:

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When using cross multiplication to solve this, you get 3 * 20 = 4(x+5).

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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