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3 years ago

6

Anna let her Helium balloon go and after 5 minutes the balloon was 30 meters above her. The equation 5b=30 represents this situa

tion. What does the b represent?

1 answer:

drek231 [11]3 years ago

3 0

Answer:

b stands for the number of minutes.

Step-by-step explanation:

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lisabon 2012 [21]

Answer:

There isn't the picture

8 0

3 years ago

The lengths of the sides of a triangle are x, 2x + 1, 5x + 4 inches. If the perimeter is 53 inches, what is thevalue of x?

satela [25.4K]

Answer: 6

Explanation:

x + 2x + 1 + 5x + 4 = 53
8x + 5 = 53
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x = 6

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4 years ago

The combined area of a pair of congruent rectangles can be represented, in square units, by the expression 18y^2-818y 2 −8. The

sveta [45]

Answer:

$Perimeter = 12y$

Step-by-step explanation:

Given

$Area = 18y^2 - 8$ -- two rectangles

Required

Determine the perimeter of one of the rectangles

First, calculate the area (A) of 1 rectangle

$A =\frac{1}{2}Area$

$A =\frac{1}{2}(18y^2 - 8)$

$A =9y^2 - 4$

Express as difference of two squares

$A =(3y - 2)(3y+2)$

Area is calculated as:

$A = Length * Width$

So, by comparison:

$Length = 3y - 2$

$Width = 3y + 2$

The perimeter is:

$Perimeter = 2 *(Length + Width)$

$Perimeter = 2 *(3y-2+3y+2)$

Collect Like Terms

$Perimeter = 2 *(3y+3y-2+2)$

$Perimeter = 2 *(6y)$

$Perimeter = 12y$

8 0

3 years ago

Solve the equation and enter the value of x below.<br> -4x-13 = 51<br> X=<br> Answer here

ololo11 [35]

Answer:

x = -16

Step-by-step explanation:

-4x - 13 = 51

-4x = 51 + 13

-4x = 64

x = -16

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3 years ago

X to the second power equal 35

Elena L [17]

Answer:

x² = 35

Step-by-step explanation:

This expression as an equation is x² = 35

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<em>Therefore</em><em> </em><em>x</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>second</em><em> </em><em>power</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>35</em><em> </em><em>as</em><em> </em><em>an</em><em> </em><em>equation</em><em> </em><em>is</em><em> </em><em><u>x²</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>35</u></em>

4 0

3 years ago