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padilas [110]
3 years ago
5

HELP ME FAST!!!!!!

Mathematics
1 answer:
photoshop1234 [79]3 years ago
7 0

Answer:

2.3

Step-by-step explanation:

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The length of a rectangle is 2 feet less than twice the width. The area of the rectangle is 180 feet squared. Find the length an
Ksenya-84 [330]

Answer:

Width=10

Length=18

Step-by-step explanation:

The length is 2 feet less then twice the width

Let the width be x.

Then the length is 2x -2 based on the given information. Use this to make an equation since it is known that the area is 180feet squared.

x(2x-2)=180

2x^2 - 2x - 180 = 0

2( x^2 - x - 90) = 0

We now have a factorable quadratic.

2(x+9)(x-10)=0

So by zero product property, x=-9, x=10 Since a measure cannot be negative, -9 is an extraneous solution.

So x=10

Then the width is 10 and the length is 18

Hope this helps! Let me know if it is correct!

3 0
3 years ago
2 Cereal comes in two different-sized boxes.
frosja888 [35]

Answer:

Step-by-step explanation:

Box A is 0.021 dollars per gram

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Box B is cheaper per gram by 0.009 dollars

6 0
3 years ago
PLEASE HELP AS SOON AS POSSIBLE THANK YOU!!
nataly862011 [7]

Answer:

We know that when x= -10, y= -17.

So, if we put those into direct variation "y=kx", we get

-17= k(-10)

k   = -17 / -10

Now we put the value of "k" into the formula and we get A (y= 17/10x )

7 0
3 years ago
75% of a number is less than 50% of a number. What is the number?
Stella [2.4K]
1.2% is the answer i hope it helpt u
3 0
3 years ago
-1/3(24+3)-1<br> i need help please <br> it is 24 points
AysviL [449]
Um -1/3(24+3)-1 = -10

So -10 is the answer
7 0
3 years ago
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