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4 years ago

1) 12,000 miles; 5% increase 2) 160 bananas; 20% decrease 3) 52 companions; 25% increase 4) 710 points; 10% decrease

Mathematics

1 answer:

olasank [31]4 years ago

4 0

12,600 miles
128 bananas
65 companions
639 points

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The sum of a number and its additive inverse is equal to ?

Zigmanuir [339]

Answer:

Zero

Step-by-step explanation:

To find the additive inverse, you merely change the sign of the number

For Example 5 {5 is the number} + (-5) {-5 is the additive inverse} = 0.

i.e. 6 + (-6) = 0

i.e (-7) + 7 = 0

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3 years ago

I don’t understand? How do you do numbers 3 and 4?

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On 3 you subract 36-3 on 4 make the fraction a decimal by dividing the numerator by the denominator and then subtract 12 by the decimal you get and I'm pretty sure you should get both your answers.

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How can you check if two fractions are equivalent?

zimovet [89]

Step-by-step explanation:

Say you have these 2 fractions

$\frac{a}{b} .........\frac{c}{d}$

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$\frac{(b)(c)}{(a)(d)}=\frac{bc}{ad}$

If in the end, both numerator and denominator are equal, then the fractions are equivalent.

Examples:

Example 1

$\frac{20}{24}...........\frac{5}{6}$

Cross multiply

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Example 2

$\frac{20}{24}........\frac{3}{4}$

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They're not equivalent.

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3 years ago

Find the number of miles in 100 km

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Answer:

Well, 100 km equals approximately 63 miles.

Step-by-step explanation:

One mile is approximately 1.6 km, so you just divide 100 km by 1.6 and you should get the miles, being 62.5 miles, or 63.

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4 years ago

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Answer:

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