So we know that the decimal place will move one right. Well basically let's assume she could have bought these expressions:
x 10 x 3.50 = 35.00
x 9 x 3.50 = 31.50 + 3.75 = 35.25
x 8 x 3.5 = 28 + 3.75 x 2 = 35.5
x 7 x 3.5 = 24.5 + 3.75 x 35.75
We know that there is a pattern. See how the cents goes .25 up each time. So we know she'd buy 6 reams of white because (6 x 3.5 = 21) + (4 x 3.75 = 15) = 36.
Answer:
The answer is: y = -4x - 5
Step-by-step explanation:
Use the point slope form:
y - y1 = m(x - x1)
Substitute in the numbers:
y - 3 = -4(x - (-2)
y - 3 = -4(x + 2)
y - 3 = -4x - 8
y = -4x - 5
√9x / √18y =
<span>3x / √9y √2 = </span>
<span>3x / 3y √2 = </span>
<span>x / y √2 = </span>
<span>x√2 / y √2√2 = </span>
<span>x √2 / y √4 = </span>
<span>x√2 / 2y </span><span>
I hope this helps :)</span>
You move the decimal point two places to the right and add on the percent sign.