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melomori [17]
2 years ago
5

What is the solution of the equation x + 12.23 = 28.659? X =

Mathematics
1 answer:
Anarel [89]2 years ago
8 0

Answer:

X=16.429

Step-by-step explanation:

move the constant to the right

calculate

28.659-12.23

=

16.429

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AveGali [126]

Answer:

I think they are similar by SAS.

Step-by-step explanation:

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Leya [2.2K]

Answer:

He used 6 bananas at .50 which cost $3.00

12 oranges at .75 which cost $9.00 and

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Step-by-step explanation:

We can set up a system of equations using the information given.

b for banana, r for orange, p for papaya

b + r + p = 21. Also given r = 2b So substitute to simplify for calculating two unknowns:

b + 2b + p = 21 The number of items.

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<em>I </em><em>multiplied</em><em> </em><em>everything</em><em> </em><em>by </em><em>100 </em><em>to </em><em>eliminate</em><em> </em><em>the</em><em> </em><em>decimals</em><em>.</em>

To solve by substituion, rewrite the first equation to get a value for p in terms of b

p = 21 - 3b

Substitute this value in the second equation and solve for b.

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–175b = 1575 –2625

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b = 6

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6 + 12 + p = 21

p = 21 –18

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There will be 40 students!!!
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