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mafiozo [28]
3 years ago
10

Nazri put some nails into a box and the total mass was 4 kg. Hari put some

Mathematics
1 answer:
-Dominant- [34]3 years ago
7 0
Answer: a). 3kg b). 1kg

Explanation:

let x be the mass of nails
let y be the mass of the box

We can write an equation base on the information:

x + y = 4kg
3x + y = 10kg (screw is 3 times heavier than nail)

We can solve this system of equation using elimination method to find x:

3x + y = 10
x + y = 4
——————
3x + y = 10
-1(x + y = 4)
——————
3x + y = 10
-x - y = -4
——————
2x = 6
x = 6/2 = 3

Now that we have x we can find y:

3x + y = 10
3(3) + y = 10
9 + y = 10
y = 1

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$2561.99 a quarter

Step-by-step explanation:

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3 years ago
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3 years ago
Y = -5x + 15 2x + y = 12
Nana76 [90]

Answer:

x = 1, y = 10

Step-by-step explanation:

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2x - 5x + 15 = 12

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Find x.

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2(1) + y = 12

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4 0
3 years ago
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Answer:

I am pretty sure it is the second option

Step-by-step explanation:

Hope this helps

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2 years ago
If the graphs of the linear equations in a system are parallel,what does that mean about the possible solution (s) of the system
Black_prince [1.1K]

Answer:

it means that there will be no solution .

<h2><em>hope this helped <3</em></h2><h2><em /></h2>

<em>-bubb0</em>

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