469 603 divided by 9 = 67 67x 7 = 479
Answer:
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Step-by-step explanation:
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1 → B
multiply each term in the parenthesis by the 6 outside
6(b-7) = 6b - 42
2 → D
multiply each term in the parenthesis by the 3 outside
3(4x+6y+2) = 12x+18y+6
3 → A
the value outside the parenthesis is -1, hence each term inside is multiplied by -1
-1(6x+5y) = -6x -5y
To answer this, I set up a system of equations for each sentence mentioned (B=3A for Betty, A - 390 for Ann, and B = (A - 390) + 1330 to show the relationship between Betty and Charles's amounts. The way to answer this is to replace the B with the 3A that represents Betty's amount. This creates 3A= (A-390) + 1330. By having only one variable you can then solve the equation to find Ann's amount. If you know Ann's amount, you can figure out Charles' amount. To solve the equation add 1330 and -390 which is the same as subtracting 390 from 1330. This leaves you with 3A= A + 940. Subtract 1A from both sides, to leave you with 2A = 940. Solve for a by dividing both sides by 2. This leaves you with A= 470. Take this value of a and substitute it in to Charles's equation which is C = A - 390. 470 - 390 equals 80. This is Charles' amount saved.
Using proportions, it is found that Sharifah owns $8,330 in taxes.
<h3>What is a proportion?</h3>
- A proportion is a <u>fraction of total amount</u>, and the measures are related using a rule of three.
- Hence, using proportions, a percentage x% of an amount a is given by:
.
<h3>Taxes for the first $34,000:</h3>
<h3>Taxes for the amount above $34,000:</h3>
- The amount taxed is $27,000, as 61000 - 34000 = 27000.
Then, the total amount is:
Sharifah owns $8,330 in taxes.
You can learn more about proportions at brainly.com/question/24372153
