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Yanka [14]
3 years ago
13

Use a unit rate to find the unknown value 16/32= /14

Mathematics
1 answer:
lesya [120]3 years ago
7 0
Okay. So this is already set up as a proportion. Cross multiply the values in order to get 224 = 32x. Now, divide each side by 32 to isolate the variable. 224/32 is 7. x = 7. There. The unknown value is 7.
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by-step explanation:

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3 years ago
I need help with number 9.<br> simple algebra.
Veseljchak [2.6K]

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Step-by-step explanation:

The volume of a cylinder is given by

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4 0
3 years ago
NEED HELP PLEASE BEGGING PLEASE!!!!
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Answer:

-54

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6 0
3 years ago
A page should have perimeter of 42 inches. The printing area within the page
Tamiku [17]

Overall  dimensions of the page in order to maximize the printing area is  page should be 11 inches wide and 10 inches long .

<u>Step-by-step explanation:</u>

We have , A page should have perimeter of 42 inches. The printing area within the page  would be determined by top and bottom margins of 1 inch from each side, and the  left and right margins of 1.5 inches from each side. let's assume  width of the page be x inches  and its length be y inches So,

Perimeter = 42 inches

⇒ 2(x+y) = 42\\x+y = 21\\y = 21-x

width of printed area = x-3  & length of printed area = y-2:

area = length(width)

area = (x-3)(y-2)\\area = (x-3)(21-x-2)\\area = (x-3)(19-x)\\area = -x^{2} + 22x -57

Let's find \frac{d(area)}{dx}:

\frac{d(area)}{dx} = \frac{d(-x^{2}+22x-57)}{dx} = -2x +22 , for area to be maximum \frac{d(area)}{dx}= 0

⇒ -2x+22 = 0\\2x =22\\x=11 inches

And ,

y = 21-x\\y = 21-11\\y = 10 inches

∴ Overall  dimensions of the page in order to maximize the printing area is  page should be 11 inches wide and 10 inches long .

7 0
3 years ago
[Help asap, will mark brainliest when it allows me] What is the value of x?
-BARSIC- [3]

Answer:

x = 45 degrees

Step-by-step explanation:

The angles in a triangle adds up to 180 degrees

105 + 30 + x = 180

==>

x = 180-135=45

8 0
2 years ago
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