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1 year ago

A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?

Mathematics

2 answers:

Simora [160]1 year ago

7 0

Answer:

Step-by-step explanation:

4 meters is equal to 400 centimeters.

400/30 = 13 1/3

You don't want partial pieces, so your answer is 13

EleoNora [17]1 year ago

5 0

Answer:

13 pieces

Step-by-step explanation:

First we convert 4m into cm :

1m = 100cm

4m = 400cm

Now we need to figure out how many 30s go into 400 :

400 ÷ 30 = 13 remainder 10

So 13 pieces can be cut from the ribbon

Hope this helped and have a good day

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Lina20 [59]

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2 years ago

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tiny-mole [99]

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3 years ago

In triangle PQR, PR = 23mm, QR = 39mm, and m<R = 163 degrees. Find the area of the triangle to the nearest tenth.

Schach [20]

Answer: 131.1287 square mm (approx)

Step-by-step explanation:

The area of a triangle,

$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

Where $s_1$ and $s_2$ are adjacent sides and $\theta$ is the include angle of these sides,

Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

Thus, the area of the triangle PQR,

$A=\frac{1}{2} \times 23\times 39\times sin163^{\circ}$

$A=\frac{262.257419136}{2} = 131.128709568\approx 131.1287\text{ square mm}$

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A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?​

A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?