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3 years ago

Which number is equal to 5 x 103? A. 150 B. 500 C. 515 D. 5.000

Mathematics

2 answers:

denis23 [38]3 years ago

7 0

The answer is 515. Because 5×103 is 515

damaskus [11]3 years ago

4 0

Answer:

515

Step-by-step explanation:

5x 103 = C. 515

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A necklace has and matching bracelet have two types of beads. The necklace has 12 large beads and 8 small beads and weighs 88 gr

miv72 [106K]

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Step-by-step explanation:

Let,

Weight of one large bead = x

Weight of one small bead = y

According to given statement;

12x+8y=88 Eqn 1

5x+2y=25 Eqn 2

Multiplying Eqn 2 by 4

$4(5x+2y=25)\\20x+8y=100\ \ \ Eqn\ 3\\$

Subtracting Eqn 1 from Eqn 3

$(20x+8y)-(12x+8y)=100-88\\20x+8y-12x-8y=12\\8x=12$

Dividing both sides by 8

$\frac{8x}{8}=\frac{12}{8}\\x=1.5$

Putting x=1.5 in Eqn 1

$12(1.5)+8y=88\\18+8y=88\\8y=88-18\\8y=70$

Dividing both sides by 8

$\frac{8y}{8}=\frac{70}{8}\\y=8.75$

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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3 years ago

Question 1 of 3

Eduardwww [97]

Answer:

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Step-by-step explanation:

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3 years ago

The magnitude scale for earthquakes is based on powers of 10. A magnitude 8 earthquake represents 108, while a magnitude 3 earth

Dmitry_Shevchenko [17]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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SpyIntel [72]

Answer:

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Step-by-step explanation

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3 years ago