Answer: $20.30
Step-by-step explanation:
First we must find Mary's total.
3kg × $9.90/kg = $29.70
She gave the cashier $50. So we subtract the total from that to determine the amount of cash or change she should get back.
$50 - $29.70 = $20.30
You put the equation in slope-intercept form by solving for y.
.. 7y = -6x -42 . . . . . .subtract 6x
.. y = (-6/7)x -6 . . . . . divide by 7
Compare this to the pattern
.. y = mx +b
The slope is the coefficient of x, m = -6/7.
The intercept is the constant term, b = -6.
Answer:
C
Step-by-step explanation:
6 + 3(x + 4)
= 6 + 3x + 12
= 3x + 18
A) the 9 is in the thousands
b) the 2 is in the ones
c) the 5 is in the hundreds