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melamori03 [73]
3 years ago
15

Solve for x. 8= 2x + 4

Mathematics
2 answers:
andriy [413]3 years ago
7 0

Answer:

2

Step-by-step explanation:

2x + 4 = 8

subtract 4 from both sides

2x = 4

divide by 2

x = 2

Mkey [24]3 years ago
5 0

Answer:

x=2

Step-by-step explanation:

Subtract 4 from 8

4 = 2x

Divide 4 by 2x

x = 2

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An investor invested a total of $2500 in two mutual funds. One fund earned a 5% profit while the other earned a 3% profit. If th
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Answer:

$500 and $2000

Step-by-step explanation:

Let x represent the total investment = $2500

also, this total is split into two different funds

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So,

a + b = x

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Solve simultaneously using substitution method

From eq 1;

b = 2500 - a

Slot in this value in eq 2

0.03a + 0.05 (2500 - a) = 115

expand

0.03a + 125 - 0.05a = 115

collect like terms

0.03a - 0.05a = 115 - 125

-0.02a = -10

Divide both sides by -0.02

a =  $500

Put this value of a in eq 1

500 + b =  2500

Subtract 500 from both sides

b = 2500 - 500

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3 0
3 years ago
The two pictures are the questions and question five is what i need help with.
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Step-by-step explanation:

5 0
2 years ago
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Which choices are equivalent to the expression below √16 • √9
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Answer:

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Step-by-step explanation:

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Answer:

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3 years ago
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