Please tell me what the final answer to this question would be.

Answers

Answer 1

Answer: First, divide the whole rectangle in fourths and figure out the area of each fourth. Each is 500m².
Second, find the area of the rectangle. 500 x 4 = 2000m² ← that is the area of the rectangle.
Lastly, the perimeter is 25m+25+80+80, because 25x80= 2000.
Answer=210m
:)

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A pie is cut into 9 equal pieces. If all but 3 pieces are eaten, how of the pie remains?

Answers

Answer:

1/3 or 3

Step-by-step explanation:

9-6 = 3

Answer:

Step-by-step explanation:

One of the same side angles of two parallel lines is 20° smaller than the other one. Find all angles.

Answers

Answer:

80°, 100°

Step-by-step explanation:

Suppose line AB and CD are parallel to each other, and lint GH intersect both at point L and M.

Now for same side interior angles of parallel lines, we know that

"sum of same side interior angles is 180° or they are supplementary angles"

Now, ∠DML + ∠BLM = 180°

∠M = x

∠L = y

Since, one angle is 20° less than second,

y=x-20

So we can make an equation,

x + y =180

x+x-20=180

2x-20 = 180

2x = 180-20

2x = 160

x = 160/2

x = 80°

Hence, y = 100°

Answer: 80 and 100

Step-by-step explanation:

180/2=90

90+10=100

90-10=80

Write a description of how a diagram can help you solve 2×40

Answers

Two multiplied by forty equals eighty. 2x40=80

Squares maybe, do 40 across 2 down to form a rectangle add them up then it will give you 40*2

What is the perimeter of the figure to the nearest tenth of a millimeter?

A.
9.4 millimeters

B.
12.0 millimeters

C.
21.4 millimeters

D.
30.8 millimeters

Answers

We have to calculate the perimeter of the figure to the nearest tenth of a millimeter. This figure is made of a rectangle and a half of a circle. The first figure has the perimeter: 3 + 6 + 3 = 12 mm. The second figure has the perimeter: 2 * Pi * r / 2 = Pi * r ; and the radius : r = 6/2 = 3 mm. So Pi * 3 = 3.14 * 3 = 9.42. Fimally : 12 + 9.42 = 21.42 or 21.4 to the nearest tenth. Answer: C. 21.4 millimeters.

Solve -1 4/5 x= 9.
A) 5
B) 1/5
C) -5
D) -1/5

Answers

Answer:

C) -5

Step-by-step explanation:

-1 4/5 x= 9.

Change the left side to an improper fraction

(5*1+4)/5 = 9/5

-9/5 x =9

Multiply each side by -5/9 to isolate x

-5/9 * 9/5x = 9 * (-5/9)

x = -5

Answer:

C) -5

Step-by-step explanation:

-1 4/5 x= 9.

Change the left side to an improper fraction

(5*1+4)/5 = 9/5

-9/5 x =9

Multiply each side by -5/9 to isolate x

-5/9 * 9/5x = 9 * (-5/9)

x = -5

Factor the expression 49b2+42b+9

Answers

Answer:

(7b+3)^2

Step-by-step explanation:

when using the perfect square rule you can see that expression can be factored down to (7b+3)^2

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