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.
Ok
First find something that will help you
($12 per hours)
(X is hours)
(Y is the money)
Next
To find y you must multiply each hours to $12.
Last:
X : 0 1 2 5
Y : ? ? ? ?
———————
X : 0(12) = 0 ( 0 hrs = $0)
1 (12) = 12 ( 1 hrs = $12)
2 (12) = 24 ( 2hrs = $24)
5(12) = 60 ( 5 hrs = $60)
Answer
0 = $0
1 = $12
2 = $24
5= $60
Equation ( I am not sure but I tried )
12x = y(total cost)
I hope this helped and was right,
Have a nice day.
-5 (2u+10)=2 (u_7) apply distributive property
-10u-50=2u-14 collect like terms
-10u-2u=50-14 when you move the number to the other side sign change
-12u =36 to get rid of 12 divide 12 on both sides
-12u/-12= 36/-12
U= -3
Answer:
48
Step-by-step explanation:
base times hight times times 1/2
24X4X1/2
Answer:
Below.
Step-by-step explanation:
15+10+8=33.