This sets up as a very commonly used proportion.
90 oz / 18.95 = 1 oz / x Cross multiply
90 x = 18.95 Divide by 90
x = 18.95 / 90
x = 0.21 dollars or 21 cents.
So each ounce of shampoo costs 0.21 dollars or 21 cents.
This is a very handy way to check best deals. Stores have trained us for years to believe that the more we buy of a brand, the better the price. It isn't always true. Sometimes buying the smaller quantity is the better deal. There is only one way to be sure and that's to do a proportion like this one.
Try this is an example. The same company makes a smaller container of shampoo of 45 oz for 9.15. How much is 1 oz and which is the better deal? You should get 0.20333 dollars so this is marginally (just) the better deal.
Answer:
6x² - 17x + 12
Step-by-step explanation:
Given
(2x - 3)(3x - 4)
Each term in the second factor is multiplied by each term in the first factor, that is
2x(3x - 4) - 3(3x - 4) ← distribute both parenthesis
= 6x² - 8x - 9x + 12 ← collect like terms
= 6x² - 17x + 12
Answer:
1 = 61
4 = 119
Step-by-step explanation:
Alternate angles
Answer:
(a) 94. (b) 85
Step-by-step explanation:
(a). the perimeter = 2l +2w ; l - length and W - width
: . 2l + 2(56) = 300
2l = 300 - 112
l = 188/2 =94m
(b) area = Lxw
8245 = 97w
w = 8245/97
= 85m
The point-slope form:
m - slope
(x₁, y₁) - point
The formula of a slope:
We have the points (-3, 7) and (9, -1). Substitute:
<em>point-slope form</em>
<em>slope-intercept form</em>
<em>standard form</em>
