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dimulka [17.4K]

2 years ago

5

Please help me! Thank you!

1 answer:

stepladder [879]2 years ago

3 0

Answer:

he got 210 dollars in interest

Step-by-step explanation:

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Fourteen school festival tickets were sold to adults and children. A total of $38 was collected from these ticket sales. Adult t

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Step-by-step explanation:

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2 years ago

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vodomira [7]

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3 years ago

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What algebraic expression must be added to the sum of 3x2 +4x+8 and 2x2−6x+3 to give 9x2−2x−5 as the result?

vesna_86 [32]

Answer:

$4x^2-16$

Step-by-step explanation:

-This is an addition/subtraction problem.

#We subtract the sum of the first two expression from the third expression:

$\#Add \ first \ two\\\\=3x^2 +4x+8 +2x^2-6x+3\\\\=5x^2-2x+11\\\\\# Subtract\ from \ the \ third\\=(9x^2-2x-5)-(5x^2-2x+11)\\\\=9x^2-2x-5-5x^2+2x-11\\\\=4x^2-16$

Hence, the expression $4x^2-16$ must be added to the first two.

7 0

2 years ago

Simplify: 21j-26+4j=21+6-2j

Molodets [167]

1. 21j-26+4j=21+6-2j
2. 25j-26=27-2j
3. 27j=53
4. j=53/27
hope this helps!!

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2 years ago