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Svetllana [295]
3 years ago
13

Solve this pair of simultaneous equations. 5x + 2y = 20 x + 4y = 13 X= y=

Mathematics
2 answers:
Katena32 [7]3 years ago
8 0

Answer:

y= 2.5

x= 3

Step-by-step explanation:

multiply eqn 2 by 5

5x +20y =65

eqn 2 -1

20-2)y=65-20

18y=45

y=2.5

x+4×2.5 =13

x+10=13

x=3

olga55 [171]3 years ago
5 0
Y=2.5
x=3

there you go
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blagie [28]

Answer:

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Step-by-step explanation:

hope this helps

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3 years ago
What is the LCM of 2,8 and 10
leva [86]
Lcm= 2
Because
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6 0
3 years ago
Consider Z1= 4-4 radical 3i and Z2= -16 i. What is Z1-Z2?
goldfiish [28.3K]

Answer:

Option (3)

Step-by-step explanation:

Z_1=4-4\sqrt{3}i

Z_2=-16i

Z_1-Z_2=(4-4\sqrt{3}i)-(-16i)

            =4-4\sqrt{3}i+16i

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Therefore, Option (3) will be the correct option.

8 0
3 years ago
ਕind me<br>When x = 4 and y = 3, find the value of:<br>a) 2x + 7y - 10​
Andre45 [30]

Answer:

19

Step-by-step explanation:

by replacing x and y with their given values ,

we get :-

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=》8 + 21 - 10

=》29 - 10

=》19

5 0
3 years ago
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