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Kruka [31]
3 years ago
10

What does 1/2•4/9 equal?

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0
1/2 * 4/9

= 4/2*9

= 2/9.
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Hurry Quick, help me do this problem. I don't understand how to do this so please help! (Problem in photo)
matrenka [14]

Answer:

1) The system of equations is 5x+4y=75 and x+y=18

2) The first number is 3 and the second number is 15

Step-by-step explanation:

1) Let be "x" the first number and "y" the second number.

Remember that:

a- The word "times" indicates multiplication.

b- A sum is the result of an addition.

c- "Is" indicates this sign:  =

Then, the sum of 5 times "x" and 4 times "y" is 75, can written as:

5x+4y=75

And "The sum of the two numbers is 18" can written as:

x+y=18

Therefore, the System of equations is:

\left \{ {{5x+4y=75} \atop {x+y=18}} \right.

2) You can use the Elimination Method to solve it:

- Multiply the second equation by -5, add the equations and then solve for "y":

\left \{ {{5x+4y=75} \atop {-5x-5y=-90}} \right.\\......................\\-y=-15\\\\y=15

- Substitute the value of "y" into any original equation and solve for "x":

x+15=18\\\\x=18-15\\\\x=3

7 0
2 years ago
Show whether or not the points with coordinates (1,3) (4,2) (-2,6) are vertices of a right triangle
katen-ka-za [31]

Answer:

No

Step-by-step explanation:

See attached

8 0
3 years ago
Calculate the rate of change.
Tpy6a [65]

Answer:

2

Step-by-step explanation:

Rise is 10 run is 5 Rate of Change is rise over run.

7 0
2 years ago
Can someone plz help me with this equation this is hard
nikdorinn [45]

Answer:

5x - 4 = 11

Step-by-step explanation:

4 less than 5 times a number equals 11

5 times a number minus 4 equals 11

(5*x) - 4 = 11

I hope this helps!!!

5 0
3 years ago
Read 2 more answers
Please help me asap :)!!​
geniusboy [140]

Answer:

EFG = 90 degrees

GDH = 45 degrees

FEG = 45 degrees

DHG = 90 degrees

Step-by-step explanation:

3 0
3 years ago
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