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Ann [662]
2 years ago
14

Alyssa has 2.1 meters of ribbon to make bows. She needs to make 3 bows. If she uses an equal amount of ribbon for each of her bo

ws, and uses all of the ribbons she has, how much ribbon will she use for each bow?
Use the Math Learning Center App, Number Pieces to show your thinking using place value blocks. Enter your answer and explain how you used the place value blocks to model the problem.
Mathematics
1 answer:
nikitadnepr [17]2 years ago
4 0

Answer:

0.7 ribbon

Step-by-step explanation:

To find how much is needed, use division.

So, to show your work:

2.1 divided by 3 = 0.7

I hope this is what you were looking for and I hope this is the correct answer for you!!!  :)

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THE LENGTH AND BREADTH OF A RRCTANGLE ARE IN RATIO 4:3 AND THE DIAGONAL MEASURES 10 CM THEN ITS PERIMETER IS
arsen [322]

Answer:

P = 28 cm

Step-by-step explanation:

the diagonal divides the rectangle into 2 right triangles with the diagonal as hypotenuse.

the ratio of length : breadth = 4 : 3 = 4x : 3x ( x is a multiplier )

using Pythagoras' identity in the right triangle

(4x)² + (3x)² = 10²

16x² + 9x² = 100

25x² = 100 ( divide both sides by 25 )

x² = 4 ( take square root of both sides )

x = \sqrt{4} = 2

then

length = 4x = 4 × 2 = 8 cm

breadth = 3x = 3 × 2 = 6 cm

perimeter (P) is calculated as

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7 0
1 year ago
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Work our the circumference of this circle
kompoz [17]

Answer:

answer=14π

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Step-by-step explanation:

GIVEN

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radius (r) = d / 2 = 14 / 2 = 7

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8 0
2 years ago
Which of the following sets could be the sides of a right triangle?
coldgirl [10]

Answer: Choice B) {3, 5, sqrt(34)}

=====================================

Explanation:

We can only have a right triangle if and only if a^2+b^2 = c^2 is a true equation. The 'c' is the longest side, aka hypotenuse. The legs 'a' and 'b' can be in any order you want.

-----------

For choice A,

a = 2

b = 3

c = sqrt(10)

So,

a^2+b^2 = 2^2+3^2 = 4+9 = 13

but

c^2 = (sqrt(10))^2 = 10

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-----------

Checking choice B

a = 3

b = 5

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Square each equation

a^2 = 3^2 = 9

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-----------

Let's check choice C

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So,

a^2+b^2 = c^2

25+64 = 144

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which is a false equation allowing us to cross choice C off the list.

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