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MakcuM [25]
3 years ago
10

Old macdonald has 100 chickens and goats in the barnyard.​ altogether, there are 294 feet. how many chickens and how many goats

are in the​ barnyard?

Mathematics
1 answer:
trapecia [35]3 years ago
5 0
Use system of equations. We know chickens have 2 feet and goats have 4.

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72% of 25 students of a class are good in mathematics. how many are not good in maths in that class?
Nata [24]
72% of 25=18
25 there are
18 are good at math
7 aren't good at math
8 0
3 years ago
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Which graph can be used to find the solution for the equation 4x + 2 = x + 3? A) A B) B C) C D) D
larisa [96]

Answer:

1/3

Step-by-step explanation:

4x+2=x+3

-2           -2

4x=x+1

-x        -x

3x=1

/3    /3

x=1/3

4 0
3 years ago
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Which of the following best describes a cone?
amm1812
Option B: A three-dimensional solid made from a pile of similar two-dimensional circles that grow smaller as the solid gets taller until it reaches a point at the vertex

The A is a cylinder, the D es pyramid, and I cannot figure out what the C is.
5 0
3 years ago
Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 11 hours to do the same job.
tester [92]

Answer:

4 19/20 hours or 4 hours , 57 minutes

Step-by-step explanation:

Given

In 9 hours Maria can fill a certain order let Say X

In 9/9 hours Maria can fill   X/9 of the order

in 1 hour Maria can fill   X/9 of the order

__________________________________

In 11 hours Jim can fill a certain order let Say X

In 11/11 hours Maria can fill   X/11 of the order

in 1 hour Maria can fill   X/11 of the order

_____________________________________________

Therefore total order filled by them in one hour will sum of individual work done by them in one hour.

Mathematically,

total order filled by Jim and maria in one hour = work done by Jim in one + work done by Maria in one hour

total order filled by Jim and maria in one hour = 1/11 + 1/9

=> 1/11 + 1/9 \\=> (9 + 11)/11*9\\=> 20/99

=>20/99 of certain order is filled by both of them in one hour.

=>Total order is one. Hence, to get 1 from 20/99 we need to multiply it with its reciprocal (i.e 99/20) as 20/99 *99/20 = 1

now

=>20/99 of certain order is filled by both of them in 1 hour.

=>multiplying both order and hour with 99/20 we have

20/99 *99/20 of certain order is filled by both of them in 1* 99/20 hour

Thus total order is filled by them in 99/20 hours = 4 19/20 hours.

1 hour has 60 minutes

so 19/20 has 60*19/20 minutes = 57 minutes.

Working together, Jim and Maria   will  take 4 hours , 57 minutes  to fill the order.

3 0
3 years ago
A regular human hand contains 27 different bones. there are 206 bones altogether in the human body approximately what percent of
laila [671]
Hand: 27 bones
Body: 206 bones

Percent of bones in hand of all human body is expressible by 27 divided by (/) 206 times (*) 100.

27/206=0.13*100=13%

Roughly 13% of bones in the body is in one human hand.

26% in 2 hands. Expressible by 13%*2.
6 0
3 years ago
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