6: -8+4V
8: -9-15V OR -9+(-)15V
10:-17+33V
Let us take number of $5 bills = x and
number of $10 bills = y.
Give that "number of $10 bills is twice the number of $5 bills".
So, y is twice of x,
We can setup an equation.
y= 2x ............................... equation(1)
Total value of all bills = $125.
We can setup another equation,
5*(number of $5 bills) + 10*(number of $10 bills) =125.
5(x) +10(y) = 125 ................................... equation(2)
Plugging y=2x in equation(2), we get
5(x) +10(2x) = 125 .
5x+20x = 125.
Adding like terms
25x = 125
Dividing both sides by 25.
25x /25 = 125/25
x= 5.
Plugging x=5 in first equation, we get
y= 2(5) = 10.
Therefore, number of number of $5 bills=5 bills and number of $10 bills = 10 bills.
For the given linear equation:
- The constant term represents the cost of the sneakers.
- The linear term represents the cost of the laces.
<h3>What does each part of the expression represent?</h3>
We know that Sarah buys one pair of sneakers and several pairs of laces.
We know that the amount that she spends is:
$35 + $3*l
The first term, the constant one, represents the cost of the pair of sneakers.
The linear term:
$3*l
Represents the cost of buying l pairs of laces, assuming that each pair costs $3.
If you want to learn more about linear equations:
brainly.com/question/1884491
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3(x - 2) = -2(x - 1) + 3
3x - 6 = -2x + 1 + 3
3x - 6 = -2x + 4
<u>+2x +2x </u>
5x - 6 = 4
<u> +6 +6</u>
<u>5x</u> = <u>10</u>
5 5
x = 2
