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3 years ago

Erasers 2 for 1 dollars or 10 for 4 dollars are they a proportional relationship

Mathematics

2 answers:

alexgriva [62]3 years ago

4 0

Answer: false

Step-by-step explanation:

alexira [117]3 years ago

4 0

False, if you get 2 for 1 then it isnt proportional to 10 for 4 dollars.

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Levi wants to order the fractions 1/3, 2/5, and 11/30 in descending order? How can you help him by using a common denominator? E

Georgia [21]

Answer:

The correct order of fractions in descending order will be:

$\frac{2}{5}, \frac{11}{30}, \frac{1}{3}$

Step-by-step explanation:

Given fraction:

$\frac{1}{3}, \frac{2}{5}, \frac{11}{30}$

To arrange them in descending order.

Solution:

In order to arrange the fractions in descending order, we will have to find the least common denominators.

To find the least common denominator, we will find the least common multiple of the denominators 3,5, and 30.

Since 30 is a common multiple of all 3 numbers, so it will be the least common denominator.

So, we multiply the numerators and denominators with same numbers in order to make the denominators = 30.

So, we have:

$\frac{1}{3}, \frac{2}{5}, \frac{11}{30}$

⇒ $\frac{1\times 10}{3\times 10}, \frac{2\times 6}{5\times 6}, \frac{11\times 1}{30\times 1}$

⇒ $\frac{10}{30}, \frac{12}{30}, \frac{11}{30}$

Now, we compare the numerators and arrange them accordingly.

$\frac{12}{30} > \frac{11}{30} > \frac{10}{30}$

So, the correct order of fractions in descending order will be:

$\frac{2}{5}, \frac{11}{30}, \frac{1}{3}$

3 0

3 years ago

What is the complete factorization of x2 -5x-14

Shkiper50 [21]

X² - 5x - 14 = (x - 7)(x + 2)

5 0

3 years ago

Read 2 more answers

Nguyen was climbing a cliff. He stopped for a snack. After that, he

Yuki888 [10]

He traveled 20 feet after his snack

8 0

4 years ago

2 /5 x + 21 = − 1 /5 ( 8 x − 25 ) − 2 x

gogolik [260]

Answer:

x=-4

Step-by-step explanation:

4 0

3 years ago

The product of a number and the number increased by 3 is 54. Find the two possible values the number could be.

julsineya [31]

$\large{\rm{\underline{\underline{Answer:}}}}$

Let the number be x.

Then, the number increased by 3 will be x + 3.

According to question,

x(x + 3) = 54

x² + 3x = 54

x² + 3x - 54 = 0

By middle term factorisation,

x² + 9x - 6x - 54 = 0

x(x + 9) - 6(x + 9) = 0

(x + 9)(x - 6) = 0

Equating to zeroes and we get,

x + 9 = 0

x = -9 (First value)

and,

x - 6 = 0

x = 6 (second value)

3 0

3 years ago