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Artyom0805 [142]

2 years ago

11

Solve the equation below by factorising. 2x^2-8x=0

1 answer:

Oksi-84 [34.3K]2 years ago

5 0

Hello,

2x² - 8x = 0

2x × x - 2x × 4 = 0

2x(x - 4) = 0

2x = 0 or x - 4 = 0

x = 0 or x = 4

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What is the sum of the first 4 terms of a geometric sequence that has a first term of 2 and a ratio (multiplier) of 8?

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3 years ago

Wil has a coin collection and is currently adding 9 coins per day to his existing number of coins in his collection.After 22 day

ira [324]

Answer:

344

Step-by-step explanation:

Number of coins added per day in the collection = 9

Number of coins in the collection after 22 days = 218

To find:

Number of coins in the collection after 36 days.

Solution:

First of all, let us find how many coins did he have initially.

Let the number of coins present initially with Wil = $x$

Number of coins added per day = 9

Number of coins added after 22 days = 22 $\times$ 9 = 198

Therefore,

$x + 198 = 218\\\Rightarrow x = \bold{20}$

Number of coins present with Wil initially = 20

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