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laiz [17]
3 years ago
14

Find the missing number 1:2=3:

Mathematics
2 answers:
Bad White [126]3 years ago
8 0
The missing number is 6 because 3 is half of 6.
zheka24 [161]3 years ago
4 0
I think it is  4 thank you


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He simultaneous equations<br>5x + y = 21<br>x - 3y = 9 <br><br>With working out​
Elza [17]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

5x + y = 21 → (1)

x - 3y = 9 → (2)

Multiply (1) by 3 and add the result to (2) to eliminate y term

15x + 3y = 63 → (3)

Add (2) and (3) term by term

(x + 15x) + )- 3y + 3y) = (9 + 63)

16x = 72 ( divide both sides by 16 )

x = 4.5

Substitute x = 4.5 into (1) for corresponding value of y

22.5 + y = 21 ( subtract 22.5 from both sides )

y = - 1.5

Solution is (4.5, - 1.5 )

8 0
3 years ago
Please see below!! Thank you so much in advance :)
stellarik [79]

Answer:

a) x = -1.9, 1.05

b) x = -3, 0, 2

Explanation:

I hope it's correct

7 0
2 years ago
There were 450 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $680. Ho
vampirchik [111]

Answer:

Adults= 110

Children= 340

Step-by-step explanation:

Given data

let adults be x

and children be y

x+y= 450----------1

2x+y=680---------2

from 1

x= 450-y

put this in 2

2(450-y)=680

900-2y=680

900-680=2y

220=2y

y= 220/2

y= 110

x+110= 450

x= 450-110

x=340

4 0
3 years ago
Which of the following points are solutions to the system of inequalities shown below?
pychu [463]
This is easy, love. It's E 
3 0
3 years ago
Read 2 more answers
Write the next three terms of the arithmetic sequence.
Inga [223]

Answer:

36, 44, 52

Step-by-step explanation:

Just add 8 to 28 = 36

Add 8 to 36 = 44

Add 8 to 44 = 52

8 0
3 years ago
Read 2 more answers
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