-7x+y=42
y=42+7x
5x+13y=66
Substitute for y (meaning put 42+7x into the equation above instead of y because they are equal - see second line of my answer above)
5x+13[42+7x] = 66
5x +546 = 66
5x=66-546
5x=-480
x=-480/5
x=-96
That mean the awner to question is 3 y is 3 just substract 6 minus 3
Tenth is the first number after the decimal. If it's 5 or more than 5, then the number will increased by 1.
15.<u>6</u>895
Since the number after tenths is greater than 5, the number will be increased by 1
15.7 is the answer
The equation used to model the cost of the bracelet would be y = 6c + 12, in which c is the number of charms on the bracelet. This is because even with no charms (c = 0), the bracelet still costs 12, which is the constant.
To solve for how many charms you can get with $96, you can plug 96 in for y and solve.
y = 6c + 12
96 = 6c + 12
84 = 6c
14 = c