Question

480=1/2×15×(20+b)
FIND THE VALUE OF b​

Answer 1

Step-by-step explanation:

$480 = \frac{1}{2} \times 15 \times (20 + b) \\ \\ 960 = 15 \times 20 +15 b \\ 960 = 300 +15 b \\ 960 - 300 = 15b \\ 660 = 15b \\ \frac{660}{15} = b \\ \\ 44 = b$

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Answer 2

Answer:

b = 44

Step-by-step explanation:

480 = 1 × 15 × ( 20 + b )

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2

480 = 0.5 × 15 ( 20 + b )

480 = 7.5 ( 20 + b )

480 = 7.5 × 20 + 7.5 × b

480 = 150 + 7.5b

480 - 150 = 7b

330 = 7.5b

330 = b

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7.4

44 = b

b = 44

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