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hjlf
4 years ago
7

Marco read that a honey bee can fly up to 2.548meyers per second. he rounded the number to 2.55. to witch place valuedid marcoro

und the speed of a honey bee
Mathematics
1 answer:
Kay [80]4 years ago
4 0
He rounded to the hundredths place.
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The length of a rectangle is 2 cm more than four times the width. If the perimeter of the rectangle is 84 cm, what are its dimen
katovenus [111]

Answer:

Length 34 cm

Width 8 cm

Step-by-step explanation:

Let

x-----> the length of the rectangle

y----> the width of the rectangle

we know that

The perimeter of rectangle is equal to

P=2(x+y)

P=84 cm

so

84=2(x+y)

42=x+y ----> equation A

x=4y+2 -----> equation B

substitute equation B in equation A and solve for y

42=(4y+2)+y

5y=42-2

y=40/5=8 cm

Find the value of x

x=4y+2 ----> x=4(8)+2=34 cm

The dimensions are

Length 34 cm

Width 8 cm

8 0
3 years ago
What are the coordinates of one of the vertices of a rectangle when two sides are given by the lines x - 3y = -8 and 3x + y = 6?
Aleonysh [2.5K]

Answer:

(1, 3)

Step-by-step explanation:

x - 3y = -8

3x + y = 6

Isolate a variable in one of the equations:

y = 6 - 3x

Substitute the value of y into the other equation:

x - 3(6 - 3x) = -8

Use distributive property:

x - 18 + 9x = -8

Combine like terms:

10x - 18 = -8

Isolate the variable:

10x = 10

x = 1

Substitute the value of x into any equation:

3(1) + y = 6

3 + y = 6

Isolate the variable:

y = 3

5 0
3 years ago
A half-Dollar has a diameter of about 31 millimeters. About how many millimeters long would a row of 56 half-dollars be?
Galina-37 [17]
Multiply 31 mm by 56:

56(31 mm) = 1736 mm (answer)
8 0
3 years ago
Read 2 more answers
A cube has side length of 1 meter. Determine the volume of the cube. Include all of your calculations in your final answer.
RSB [31]

Answer:

1

Step-by-step explanation:

Volume of Cube = a³

a is the length of one side of cube

Volume = a³ = 1³ =1x1x1 = 1

8 0
3 years ago
What is the vertex of the parabola f(x)=-(x-3)^2+25
zubka84 [21]

Answer:

(3,25) is the vertex

Step-by-step explanation:

f(x)=-(x-3)^2+25

This equation is written in the form

y = a(x-h)^2 +k

Where (h,k) is the vertex of the parabola

(3,25) is the vertex

8 0
3 years ago
Read 2 more answers
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