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3 years ago

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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AlekseyPX

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Step-by-step explanation:

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3 years ago

Q.6

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

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Stolb23 [73]

Answer:

11 for the first company and 2 for the second company

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3 years ago

A large oak tree is 17 meters tall. At a certain time of day, it casts a long shadow on the

Marrrta [24]

Answer:

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Step-by-step explanation:

Using the concept of similar triangles :

Taking the ratio of similar sides :

h/17 = 63 /51

Cross multiply :

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3 years ago