Answer:
-0.7
Step-by-step explanation:
-2n+1.8=3.2
-2n=3.2-1.8
-2n=1.4
n=1.4/-2
n=-0.7
The expanded form of the given expression is 2 × w × z × z
<h3>Writing an expression </h3>
From the question, we are to determine the expanded form of the given expression
The given expression is
2wz²
To write an expression in an expanded form, we will write the expression as a repeated multiplication in the <u>simplest</u> way possible.
To do this, we will first expand the index in the given expression.
The index in the given expression is z²
Thus, we get
z² = z × z
Now, we will include the remaining individual terms in the expression and write them as product.
That is,
2wz² = 2 × w × z × z
Hence, the expanded form of the given expression is 2 × w × z × z
Learn more on Writing an expression here: brainly.com/question/17985350
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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 and explanation:
Possible domain of function includes from number one person attending to number 5 person attending
Find attached
You will multiply A by 5 and B by 2.
A: 5(2x - 3y) = -6(5)
B: 2(-5x - 9y) = 15(2)
Simplify.
A: 10x - 15y = -30
B: -10x - 18y = 30
When you add down:
10x + (-10x) = 0 <--- Eliminates the x-value.
(-15y) + (-18y) = -33y
(-30) + 30 = 0
Your ending solution will be -33y = 0
Hope this helps! :)