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xxTIMURxx [149]
4 years ago
10

Find the value of x. 3x-6

Mathematics
1 answer:
s344n2d4d5 [400]4 years ago
7 0

Answer:

x = 7

Step-by-step explanation:

We can use ratios to solve

3x-6            10

----------   = -------------------

12+(3x-6)        10+8

Simplifying

3x-6            10

----------   = -------------------

(3x+6)        18

Using cross products

18(3x-6) = 10(3x+6)

Distribute

54x - 108 = 30x +60

Subtract 30x from each side

54x-30x -108 = 60

24x -108 = 60

Add 108 to each side

24x = 60+108

24x = 168

Divide each side by 24

24x/24 = 168/24

x =7

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Brainlest + Points! Please show work!
evablogger [386]

Answer:

Option B - The income earned in one month is $5.50.

Step-by-step explanation:

Given : At River Bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge.

To find : The income earned in one month on the checking account for a customer with an account balance of $1,000.

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