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Andreyy89
3 years ago
10

12 birds can eat 12 packets of food in 6 minutes. Assuming that all the birds eat at the same rate, how long will it take 9 bird

s to finish 36 such packets?
Mathematics
1 answer:
Troyanec [42]3 years ago
6 0

Answer:

8 minutes

Step-by-step explanation:

If it takes 12 birds to eat 12 packets of food in 6 minutes that means it takes .5 minutes for 1 bird to eat 1 packet of food. 6÷12=.5

If there is 9 birds to eat 36 packets you first have to multiply the amount of birds times the rate it takes one to eat one packet. 9×.5=4.5 and with this now you know how many packets of food the group of 9 birds can eat per minute. Finally you divide the amount of packets by the amount of packets of food the group of 9 birds can eat per minute. 36÷4.5=8 And that's how they take 8 minutes to eat the 36 packets of food.

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7. Numericals
Nadusha1986 [10]

Answer:

i = 1000cm2

ii = 100000cm3

Step-by-step explanation:

for q i

surface area of base = l* b

= 50* 20

1000cm^2

for q 2

volume l*b*h

= 50*20*10

= 100000cm^3

hope it will be helpfull

3 0
3 years ago
Christopher has a log that is 8 3/4 feet long. Estimate the number of 2 1/4-foot pieces he can cut from his log. Explain how you
Brrunno [24]

Answer:

3 pieces with 2 feet left over

Step-by-step explanation:

1 Piece : 2 1/4

2 pieces : 4 1/2

3 pieces : 6 3/4

8 3/4/2 1/4=3 with 2 feet left over

4 0
3 years ago
A cow is tied by a 25 meter rope to the corner of a barn shown. a fence keeps the cow out of the garden. find the total grazing
sergejj [24]
Area
\pi {r}^{2}  \\  =  \frac{22}{7}  \times  {25}^{2}  \\  = 1964.3
Answer is 2000 (after rounding to nearest thousands).

Hope this helps. - M
3 0
3 years ago
What is The Volume? Show Your Work Please
Kazeer [188]

The volume of the given figure is 434 ft³. The volume of the figure is obtained in the two parts.

<h3>What is volume?</h3>

The term “volume” refers to the amount of three-dimensional space taken up by an item or a closed surface. It is denoted by V and its SI unit is in cubic cm.

The volume of the given figure is;

\rm V = l_1 \times b_1 \times h_1 + l_2 \times b_2 \times h_2 \\\\ V= 7 \times 13 \times 4 + 2\times 5 \times 7 \\\\ V= 434 \ fT^3

Hence, the volume of the given figure is 434 ft³.

To learn more about the volume, refer to the link;

brainly.com/question/13338592

#SPJ1

5 0
2 years ago
Find the area of the parallelogram.
tensa zangetsu [6.8K]

Answer:

<h2>A = 210 cm²</h2>

Step-by-step explanation:

Area of a parallelogram = base × height

From the question

The base is = 30 cm

Let h represent the height of the parallelogram

We must first use Pythagoras theorem to find the height of the parallelogram before finding it's area

We have

{25}^{2}  =  {h}^{2}  +  {24}^{2}  \\  {h}^{2}  =  {25}^{2}  -  {24}^{2}  \\  {h}^{2}  =  \sqrt{ {25}^{2}  -  {24}^{2} }  \\  {h}^{2}  =  \sqrt{625 - 576}  \\  {h}^{2}  =  \sqrt{49}

We have the answer as

h = 7 cm

So from the question

height = 7cm

Let's substitute the base and the height into the above formula and solve for the area

We have

Area = 30 × 7

We have the final answer as

<h3>A = 210 cm²</h3>

Hope this helps you

5 0
3 years ago
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