2 years ago

A footballer attempted 30 goals during a match and only makes 12. What fraction of the attempted goals did he make?

Mathematics

2 answers:

creativ13 [48]2 years ago

6 0

Answer:

2/5

Step-by-step explanation:

you have to reduce each number by 6

Doss [256]2 years ago

5 0

Answer: 12/30 or 2/5

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Answer:

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A and b are positive integers and 7a+ 5b= 49. Find the values of a and b.

777dan777 [17]

Answer:

B = 49/5 - 7a/5

A = = -5b/7 + 7

Step-by-step explanation:

Given that,

7a+ 5b= 49

Solution:

Solving for a:

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$7a+5b - 5b=49 - 5b$
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Divide both sides by 7:

$\cfrac{7a}{7} = \cfrac{ - 5b + 49}{7}$
$a = \cfrac{ - 5b}{7} + 7$

Hence,a = -5b/7 + 7.

Solving for b:

Add -7a to both sides:

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$7a + 5b - 7a = 49 - 7a$
$5b = 49 - 7a$

Divide both sides by 5:

$\cfrac{5b}{5} = \cfrac{49 - 7a}{5}$
$b = \cfrac{49}{5} - \cfrac{7a}{5}$

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