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eimsori [14]
3 years ago
5

the area of a rectangle is 70 square inches the length of the rectangle is 3 inches longer than the width wich equation models t

his situation
Mathematics
2 answers:
dezoksy [38]3 years ago
8 0

Answer:

x² - 3x - 70 = 0 models this situation.

Step-by-step explanation:

Area of a rectangle = 70 inches²

Let the length of the rectangle = x inch

Since Length of the rectangle is 3 inches longer than the width of the rectangle.

Then width of the rectangle = (x - 3) inches

Now area = Length × width

70 = x(x - 3)

x² - 3x = 70

x² - 3x - 70 = 0

Therefore, x² - 3x - 70 = 0 models this situation.

Greeley [361]3 years ago
6 0

Answer:3x+x^2

Step-by-step explanation:

Area= length*width

=(3+x) *x

=3x+x^2

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The combined height of one fir tree and one pine tree is 212121 meters. The height of 444 fir trees stacked on top of each other
inn [45]

Answer: The height of each fir tree is 9 meters, and the height of each pine tree is 12 meters.

Step-by-step explanation:

Let x= height of each fir tree, y = height of each pine tree.

As per given, we have

x+y = 21          (i)

4x=y+24        (ii)

From (ii),

4x-y=24            (iii)

Add (i) and (iii), we get

5x=45\\\\\Rightarrow\ x=\dfrac{45}{5}\\\\\Rightarrow\ x=9

Put value of x in (i), we get

9+y=21\Rightarrow y=12

Hence, the height of each fir tree is 9 meters, and the height of each pine tree is 12 meters.

3 0
2 years ago
Read 2 more answers
Which equation is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y = 8/3x?
Blizzard [7]

Answer:

5

Step-by-step explanation:

it is five

3 0
3 years ago
I need help with no. 11 & 12. Pls show your work.
Hitman42 [59]
But you're already done....
5 0
3 years ago
What is the value of the expression below if y=5
Neko [114]

Answer:

25

Step-by-step explanation:

8*5=40

40+6=46

46-10=36

36-9=25

5 0
3 years ago
The sum of 5 consecutive numbers is -5. What is the largest out of the numbers?
xxTIMURxx [149]
We can say that x is the largest number.

So the sum is x + (x - 1) + (x - 2) + (x - 3) + (x - 4) = -5

Now solve for x:

x + x + x + x + x - 1 - 2 - 3 - 4 = -5

5x - 10 = -5

5x = 5

x = 1

So the largest number is 1.

Check: 1 + 0 + -1 + -2 + -3   =   -2 + -3   =   -5 so 1 is correct.
3 0
3 years ago
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