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Zanzabum
3 years ago
13

A 90 oz. bottle of shampoo is sold for $18.95. What is the price per ounce

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

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.

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PLEASE HELP!!! DUE IN 10 MIN!!!
9966 [12]

Answer:

Option B

Step-by-step explanation:

Surface area of a triangular prism = Area of the triangular sides + Area of the rectangular sides

Area of the triangular sides = 2(Area of the triangular base)

                                              = 2[\frac{1}{2}(\text{Base})(\text{Height})]

                                              = 10 × 12

                                              = 120 ft²

Area of the rectangular sides = (Perimeter of the triangular side)(Height of the prism)    

= (10 + 13 + 13)(15)

= 36 × 15

= 540 ft²

Surface area of the prism = 120 + 540

                                           = 660 square feet

Option B will be the answer.

5 0
3 years ago
Choices are... <br> A)1120<br> B)2275<br> C)3500<br> D)2345<br> It's Side Splitter Theorem
sergiy2304 [10]

Answer:

B

Step-by-step explanation:

The sections of the parallel roads split by the transversals are in proportion, that is

\frac{350}{300} = \frac{first}{1650} ( cross- multiply )

300 first = 577500 ( divide both sides by 300 )

first = 1925 ft

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7 0
3 years ago
Alonzo wrote the equation x = 2+4y-5. Which equation is equivalent?
Rainbow [258]

Consider the equation x = 2+4y-5, it can be expressed as x = 4y-3.

Now, we have to write the equivalent equation.

Since, Equivalent equations are those equations which have exactly same solution. We can say that the two equations are equivalent if solution of one equation is the solution of other equation.

So, consider the equation x = 4y -3

Equivalent equation can be obtained by multiplying the given equation by any number say '2'.

Multiplying both sides of the given equation by '2'.

x = 4y-3

2 \times x = 2 \times (4y-3)

2x = (2 \times 4y)-( 2 \times 3)

2x = 8y-6 is the required equivalent equation.

6 0
3 years ago
Which ratio is equivalent to 5/10
grin007 [14]
5÷5=1
10÷5=2
answer is 1:2
3 0
3 years ago
Greatest to least <br> 5,-12/16,9/36,-23/35
Ksenya-84 [330]

Answer:

5, 9/36, -12/16, -23/35

Explanation:

Convert to decimals then rearrange.

6 0
3 years ago
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