Christian and Yong had some stickers in the ratio 2:3. After Yong gave Christian 15 stickers, the ratio became 5: 7. What was the total number of stickers they had?

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Question:

Christian and Yong had some stickers in the ratio 2:3.

After Yong gave Christian 15 stickers, the ratio became 5: 7. What was the total number of stickers they had?

900

Step-by-step explanation:

Given that Christian and Yong had some stickers in the ratio 2:3.

Let Christian has 2x stickers and Yong has 3x stickers.

If Yong gave Christian 15 stickers, then Yong has 3x -15 stickers and Christian has 2x + 15.

The ratio becomes 5:7. So,

⇒

⇒

⇒

The total number of stickers they had is equal to 5x = 5(180) = 900.

Thus, the answer is 900.



answer: 10 meter

step-by-step explanation:

need details

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)