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OlgaM077 [116]
3 years ago
10

I need help with four questions NOW!!!! please.

Mathematics
1 answer:
TiliK225 [7]3 years ago
4 0
1- Formal
2- Something familiar, and something he has strong feelings about.
3- a question
4- Brainstorming

Hope this helps! : )
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Find x if x + y = 16, x * 3 is even, x is a factor of y, and 2x+y= 20.
ozzi

Answer:

x = 0

Step-by-step explanation:

7 0
2 years ago
Two families are shopping for a camping trip. The first family buys 3 flashlights and 4 sleeping bags at a cost of $118. The sec
Sliva [168]

Answer:

3x +4y = 118

5x+6y =180

y= $25

Step-by-step explanation:

Let x = the cost of a flashlight

Let y = the cost of a sleeping bag

3x +4y = 118

5x+6y =180

Multiply the first equation by -5

-5(3x +4y) = -5*118

-15x -20y = -590


Multiply the second equation by 3

3(5x+6y) =3*180

15x + 18y = 540

Add the modified equations together.

We are using elimination to eliminate the variable x

-15x -20y = -590

15x + 18y = 540

----------------------------

-2y = -50

Divide by -2

-2y/-2 = -50/-2

y =25

Each sleeping bag costs $25

7 0
3 years ago
Read 2 more answers
What is the sum of 8 and 10?
Pachacha [2.7K]

Answer:

18

Step-by-step explanation:

pls mark brainliest

idk if this is a joke

3 0
3 years ago
If c+1/d=5 , what is the value of 30d/2c+2
klemol [59]

Answer:

3

d\in R,\hspace{5}d\neq 0

Step-by-step explanation:

You can solve for any variable. From the first equation, let's solve for c :

\frac{c+1}{d} =5\\\\c+1=5d\\\\c=5d-1

Now, replace the value of c into the other equation:

\frac{30d}{2c+2} \\\\\frac{30d}{2(5d-1)+2} \\

Using distributive property

\frac{30d}{10d-2+2} =\frac{30d}{10d} =3

However, keep in mind that this is true for:

d\in R,\hspace{5}d\neq 0

8 0
3 years ago
Can 6,6,12 make a triangle
BARSIC [14]

Very technically, yes. But . . .

-- Its angles would be  0°,  0°, and  180° .

-- Its height and area would both be zero.

-- It would look like a line segment, because the two ' 6 ' legs
would have to be wide open in a straight line, and they would
lie right on top of the ' 12 ' leg ... that's the only way they could
reach between the ends of it.


5 0
3 years ago
Read 2 more answers
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