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3 years ago

30 points if you answer this!

Mathematics

2 answers:

lord [1]3 years ago

8 0

Answer:

Step-by-step explanation:

4y is a term in itself 3 and x separate aren't and 4x + 7 is an equation not a term.

horsena [70]3 years ago

6 0

Answer:

Its 4y.

Step-by-step explanation:

The other answer has more information.

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This morning, some dragons, horses, and chickens were playing in my backyard. I counted 15 heads, 50 legs, and 4 wings. How many

klasskru [66]

We are given

number of heads =15

we know that

any healthy dragon has three heads

horse has 1 head

chicken has 1 head

Let's assume

number of dragons is x

number of horses is y

number of chickens is z

so, we will get

first equation:

$3x+y+z=15$

number of legs =50

any healthy dragon has four legs

chicken has 2 legs

horse has four legs

so, we can get second equation as

$4x+4y+2z=50$

we can simplify it

$2(2x+2y+z)=50$

$2x+2y+z=25$

now, we can find third equation

dragon has two wings

horse has no wings

chicken has two wings

so, we will get third equations as

$2x+0y+2z=4$

now, we can simplify it

$2x+2z=4$

$2(x+z)=4$

$x+z=2$

so, we will get system of equations as

$3x+y+z=15$

$2x+2y+z=25$

$x+z=2$

now, we can use substitution

We can find for z from third equation

$z=2-x$

we can plug this in first equation

$3x+y+2-x=15$

now, we can solve for y

$2x+y+2=15$

$y=13-2x$

now, we can plug this z and y into second equation

$2x+2(13-2x)+2-x=25$

now, we can solve for x

$x-4x+26=23$

$-3x=-3$

$x=1$

now, we can find y and z

$y=13-2x$

we can plug x=1

$y=13-2*1$

$y=11$

$z=2-x$

we can plug x=1

$z=2-1$

$z=1$

Hence ,

number of dragons is 1

number of horses is 11

number of chicken is 1............Answer

7 0

3 years ago

Positive square root of 15376 by factors

pashok25 [27]

15376
/ I
961 16
/ I / I
31 31 4 4

31 × 4 = 124

The square root of 15376 is 124

6 0

3 years ago

21/4 of what number is 72?

Helen [10]

So, 4 will be multiplicated by 72 and the result will be divided by 21 giving you 13.71 (I'm not sure about this answer)

5 0

4 years ago

(Dot plots) I need help. Answer F. G. H.

Tpy6a [65]

So for H I want to say the second one because it is spread out.

6 0

3 years ago

Read 2 more answers

Mason throws a coin 3 times.

kow [346]

Given:

Mason throws a coin 3 times.

The outcome of each throw is either Heads or Tails.

To find:

The list of all the possible outcomes of the 3 throws.

Solution:

Let H represents heads and T represents tails.

For each throw we have 2 choices either H or T.

For three throws the total number of possible outcomes is

$2^3=8$

Now, list the possible outcomes as shown below.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

Therefore, the list of 8 possible outcomes is HHH, HHT, HTH, HTT, THH, THT, TTH, TTT.

7 0

3 years ago