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Serggg [28]
3 years ago
7

For question number 1 pls help, and show work step by step

Mathematics
1 answer:
amid [387]3 years ago
7 0

The answer for this problem would be \left[\begin{array}{ccc}r=7\end{array}\right] \\.

We are going to solve your equation step-by-step.

Step 1: Subtract r from both sides.

7r−15−r=r+27−r

6r−15=27

Step 2: Add 15 to both sides.

6r−15+15=27+15

6r=42

Step 3: Divide both sides by 6.

6r/6=42/6

The answer for this is r=7.

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The area of the figure is _______ square units.
nignag [31]
Divide the figure into 4 parts: a triangle, rectangle, rectangle, and triangle.

Area of triangle: 1/2(base · height)
Area of rectangle: (length · width)

Solve for the 2 triangles:
Triangle #1: 1/2(6 · 8)
                      1/2(48) = 24 units²
Triangle #2: 1/2(3 · 8)
                      1/2(24) = 12 units²

Solve for the 2 rectangles:
Rectangle #1: (3 · 8) = 24 units²

Rectangle #2: (9 · 8) = 72 units²

Add up all the measurements.

24 + 12 + 24 + 72 = 132 units²

The area of the figure is 132 units².
4 0
3 years ago
Read 2 more answers
The perimeter cf a rectangle i: 56 inches" the ratio of the length of the width is 6 : 1. Find the length and the width.
sergejj [24]

Answer: Length = 24; width =4

Step-by-step explanation

Since the ratio of the length to width is 6:1

Let the length  be represented as  6x

And the width be  = x

Such that that the Perimeter of the rectangle which is  

Perimeter = 2(length + width)  becomes

56 = 2(6x + x)

56/2 = 6x+x

28 = 7x

x = 4

Width = 4

Length = 6x= 6 x 4 = 24

8 0
3 years ago
Solve for x to the nearest tenth.​
Romashka [77]

3^2+y^2=8^2\\9+y^2=64\\y^2=55\\\\x^2+3^2=y^2\\x^2+9=55\\x^2=46\\x=\sqrt{46}=2\sqrt5\approx6,8

8 0
2 years ago
PLS HELP FAST!!!
katrin2010 [14]

The points have been plotted on the coordinate graph.

6 0
3 years ago
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What is the slope of the line given by the equation y=3.8x?
Lemur [1.5K]

Answer:

the slope is 3.800000

Step-by-step explanation:

7 0
3 years ago
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