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storchak [24]
2 years ago
10

Plz help I don’t know the answer

Mathematics
1 answer:
Dahasolnce [82]2 years ago
5 0
Are there options for the answers or not? If there is add the options.
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Old Mc Donald raises ducks and cows. The animals have a total of 100 heads and 354 feet. How many ducks and how many cows does O
dlinn [17]

Answer:

The number of ducks Old Mc Donald raises are 23 and the number of cows Old Mc Donald raises are 77.

Step-by-step explanation:

We are given that Old Mc Donald raises ducks and cows. The animals have a total of 100 heads and 354 feet.

Let the number of ducks Old Mc Donald raises be 'x' and the number of cows Old Mc Donald raises be 'y'.

So, according to the question;

  • The first condition states that the animals have a total of 100 heads, that means;

                                   x+y=100

                                    x=100-y  -------------------- [equation 1]

{because one head of a duck and one head of cow}

  • The second condition states that the animals have a total of 354 feet, that means;

                                   2x+4y=354

                                   x+2y=177   --------------- [equation 2]

{because there are two feet of a duck and four feet of cow}

Now, putting the value of x in equation 2 we get;

                                  100-y+2y=177

                                  y=177-100

                                    y = 77 cows

Putting this value of y in equation 1 we get;

                                 x = 100 - y

                                 x = 100 - 77 = 23 ducks

Hence, the number of ducks Old Mc Donald raises are 23 and the number of cows Old Mc Donald raises are 77.

4 0
3 years ago
On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−6, 2) and T(1, 2). What is the length of Side RT
andriy [413]
Answer : 7 units

There are two ways you can solve this problem:

1st way - Subtract the T's x coordinate by r's x coordinate.

1-(-6) = 1+6 = 7

2nd way - Graph the points than count the units between them.

[
I attached a picture, I graphed ur points]


8 0
3 years ago
Read 2 more answers
The two lines y=2/5x+9 and y= -2/5x-9 are: <br> a) parallel <br> b) perpendicular <br> c)neither
irakobra [83]

Answer:

neither

Step-by-step explanation:

parallel lines have the same slope and different y-intercept

perpendicular lines have the reciprocal as slopes( 2/5 and 5/2)

as these slopes have neither the answer in NEITHER

8 0
2 years ago
How do you do simplfi 32/100
poizon [28]

The reduced form of  

\frac{32}{100}  = \frac{8}{25}

3 0
3 years ago
7.3g of sugar is needed for every cake made. How much sugar is needed for 9 cakes?​
horrorfan [7]
ANSWER:
65.7g of sugar

STEP BY STEP:
multiply the amount of sugar needed for one cake (7.3) by the number of cakes you want to make (9). And you get your answer of 65.7.

hope this helps
6 0
2 years ago
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