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3 years ago

When do you need to use two number lines to compare two fractions?

1 answer:

3 0

<span>You need two number lines to compare two fractions when their denominators are different. The procedure is that you draw to segment lines of the same length but divede each line according to its denominator and then compare the place of the points that mark the fraction numbers, the line that content the marke further away from the start end will be indicate the greater fraction. For example, the fractions 3/4 and 7/10. One line will be divided inot 4 equidistant segments, and the other with 10 equidistant segments. The fraction 3/4 will be represented with 3 marks on the first line, and the fraction 7/10 will be represented with 7 marks on the second line. Now you can compare the size of the two segments marked adn decide which fraction is greater. </span>

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EDIT: This is actually for Middle School mathematics, I apologize.

monitta

I am going to assume it is 2(3)^x since that matches the values in the table. As for finding the answer, take a close look at both tables and see which x and y value from both have the same answer.

7 0

4 years ago

Solve for x:<br><br> -10x/2+x=x+8/x

rosijanka [135]

$The\ domain:\\D:\ x\neq-2\ \wedge\ x\neq0\\\\\dfrac{-10x}{2+x}=\dfrac{x+8}{x}\ \ \ \ |\text{cross multiply}\\\\(-10x)(x)=(2+x)(x+8)\\\\-10x^2=(2)(x)+(2)(8)+(x)(x)+(x)(8)\\\\-10x^2=2x+16+x^2+8x\\\\-10x^2=x^2+10x+16\ \ \ +10x^2\\\\11x^2+10x+16=0\\\\a=11,\ b=10,\ c=16\\\\b^2-4ac=10^2-4(11)(16)=100-704=-604 < 0\\\\NO\ REAL\ SOLUTION$

3 0

3 years ago

A pharmaceutical company interviews 12 people for eight openings in the research department of the company. 7 of the 12 people a

bagirrra123 [75]

Answer:

Step-by-step explanation:

4 0

3 years ago

What is the total cost to the nearest cent? $48 dinner; 20% tip?

Virty [35]

For a 48 dollar dinner, 20 percent in tip is $9.60. To find this, you multiply 48 by 0.2. To get the total cost of the bill it will be 48+9.60= $57.60

7 0

3 years ago

You believe in the power of compounding and decide to save $1 per day by avoiding the purchase of a soda. You deposit the $1 at

Fiesta28 [93]

Answer:

option (c) $18,032

Step-by-step explanation:

Data provided in the question;

Amount deposited at the end of each day = $1

Interest paid = 8% compounded daily = 0.08

Daily interest rate = $\frac{\textup{0.08}}{\textup{365}}$ = 0.000219

Duration = 20 years = 20 × 365 days = 7300 days

Now,

the Future value is given as:

Future value = Part payment × $\frac{(1+r)^n-1}{r}$

here, r is the interest rate

n is the duration

thus,

Future value = $1 × $\frac{(1+0.0002192)^{7300}-1}{0.0002192}$

Future value = $18033.56 ≈ $18,032

Hence, the correct answer is option (c) $18,032

7 0

3 years ago