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Alona [7]
3 years ago
11

3x+2y=5 , solve for y Please help I don't understand

Mathematics
2 answers:
olga55 [171]3 years ago
8 0
3x+2y=5\\
2y=-3x+5\\
y=-\frac{3}{2}x+\frac{5}{2}
kotykmax [81]3 years ago
6 0
3x + 2y = 5                   :Subtract the 3x over to the other side

2y = -3x + 5                  :Then, divide the whole equation by 2

y = -3/2x + 5/2
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When the value of the slope gets smaller what does does the line gets?
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It will become less steep.
4 0
3 years ago
mckenna and lara work for their uncle eddie, who repairs skateboards and bicycles. uncle eddie is leaving for a vacation to the
juin [17]

The <em><u>correct answer</u></em> is:

15 bicycles and 6 skateboards.

Explanation:

Let x represent the number of bicycles and y represent the number of skateboards.  The first equation in our system is then

x+y = 21, since there are 21 total items in the shop.

Each bicycle has 2 tires and each skateboard has 4; this gives us the equation

2x+4y=54 (because they are ordering 54 tires).

This makes our system

\left \{ {{x+y=21} \atop {2x+4y=54}} \right.

We will use elimination to solve this; we first need one of the variables to have the same coefficient in both equations.  We will make x the same, and we will do this by multiplying the first equation by 2:

\left \{ {{2(x+y=21)} \atop {2x+4y=54}} \right.  \\&#10;\\\left \{ {{2x+2y=42} \atop {2x+4y=54}} \right.

Now we will subtract the second equation from the first one:

\left \{ {{2x+2y=42} \atop {-(2x+4y=54)}} \right.  \\&#10;\\-2y=-12

Divide both sides by -2:

-2y/-2 = -12/-2

y = 6

There were 6 skateboards.  Substituting this into the first equation,

x+6 = 21

Subtract 6 from each side:

x+6-6 = 21-6

x = 15

There were 15 bicycles.

3 0
3 years ago
May someone please explain to me how to do this in the easiest way? I don't really understand. Thanks❤
katrin [286]
Ok, so 1 is a whole number.  1/5 is a fraction of 1.  So you want to subtract 1/5 from 1.  The number 1 is equal to 5/5.  So if you subtract 1/5 from 5/5 you are left with 4/5.  You do the same with the second one, just subtract 3/5 from 5/5 to get your answer.
8 0
3 years ago
Read 2 more answers
Where can u place these at tell me
Alex777 [14]
The best thing to do is to rewrite the fractions as decimals
-2/3 is approx. equal to -0.6666667
So a little past half way (to the left) between -1 and 0
1 1/5 is 1.5 so that is right between 1 and 2

Hope this helps :)
5 0
3 years ago
HELPPPPPPPP MEEEEE please
Furkat [3]

Answer:

not a function

Step-by-step explanation:

trust me i have been through this

7 0
3 years ago
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