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2 years ago

True or false ??? Someone plz helpppp !!! this quiz is hard

Mathematics

2 answers:

elena-s [515]2 years ago

6 0

Answer:

True.

Step-by-step explanation:

Since they are all on the number line and some are negative, you would go back and go up instead. If you were to check again, it would be all on the number line.

Aleks [24]2 years ago

4 0

True ummm the top person was right

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What is the equation of the graph below

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Answer:

the first equation

Step-by-step explanation:

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2 years ago

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The Positions of two divers from the water's surface after a dive are shown: Ray: -15 feet Henry: - 20 feet Which inequality exp

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Step-by-step explanation:

Henry is deeper in the water than Ray because -20 < -15

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3 years ago

A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and w

Len [333]

Answer:

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

Step-by-step explanation:

step 1

<em>Find out the unit rate of a regular tube of toothpaste</em>

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{2.50}{3.2}=\$0.78\ per\ ounce$

step 2

<em>Find out the unit rate of a travel size tube of toothpaste</em>

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{1.00}{1.2}=\$0.83\ per\ ounce$

step 3

Find out the percent of increase

we have that

The unit rate $\$0.83\ per\ ounce$ represent the 100%

so by proportion

Find out what percentage represent the difference ($0.83-$0.78=$0.05 per ounce)

$\frac{0.83}{100\%}=\frac{0.05}{x}\\\\x=100(0.05)/0.83\\\\x=6\%$

therefore

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

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2 years ago

Choose the correct simplification of the expression 9 over h to the power of negative 3

Vitek1552 [10]

Remove the negative exponent by rewriting x^-3 as 1/x^3
(9)/(1/x^3)
multiply the numerator by the reciprocal of the denominator
9x^3

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3 years ago

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2/4+3/8. how do I calculate this

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Well, 2/4 is equivalent to 4/8. So you can turn the 2/4 into 4/8 and then add 4/8 plus 3/8.

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