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Dennis_Churaev [7]
3 years ago
14

I have 28 cubes. how many ten and ones i can make? do this one other way not 2 tens or eight 1.

Mathematics
1 answer:
Maurinko [17]3 years ago
4 0
<h3><u>Answer:</u></h3>

We can make:

1 tens and 18 ones.

<h3><u>Step-by-step explanation:</u></h3>

It is given that:

I have 28 cubes. how many ten and ones i can make.

One simple way of doing so is:

making 2 tens and eight 1.

( since on adding this it would give:

2 tens=2×10=20

and eight 1=8×1=8

so, 20+8=28)

But we have to choose some other method of making 28.

so we will make:

1 tens and eighteen ones.

( Since 1 tens=1×10=10

and eighteen ones=18×1=18

so,

10+18=28)

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Answer:

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Step-by-step explanation:

We can write the following system of equations:

\begin{cases}x+y=6\\x-y=16\\\end{cases}

Adding both equations together, we isolate x and get:

2x=22,\: x=11

Plugging x=11 in any of the equations, we can solve for y:

11+y=6,\: y=-5

Verify that the solution pair (11, -5) works \checkmark

Therefore, the two numbers are \fbox{$-5\:\mathrm{and}\: 11$}.

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Step-by-step explanation:

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Step-by-step explanation:

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