Pe un teren de sport,fetele reprezinta un sfert din numarul baietilor.Daca pleaca 8 baieti si vin acelasi numar de fete,raportul
va fi de 1 la 2.Cate fete si cati baieti sunt?
1 answer:
Answer:
the girls be 12 and boys be 48 respectively
Step-by-step explanation:
The computation of the number of boys and number of girls is shown below:
Let us assume A be girls
And, b be boys
According to the question
b = 4 × a
b - 8 = 2 × (a + 8)
b - 8 = 2 × a + 16
4 × a -8 = 2 × a + 16
4 × a - 2 × a = 16 + 8
2 × a = 24
a = 12
Now
b = 4 × a
= 4 × 12
= 48
Hence, the girls be 12 and boys be 48 respectively
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No
Step-by-step explanation:
By the factor theorem if (x + 2) is a factor of f(x) then f(- 2) = 0
f(- 2)
= 2
+
+ 32(- 2) + 32
= 2(64) - 32 - 64 + 32
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