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3 years ago

What is the least common denominator of the equation 2/9 and 2/3

1 answer:

4 0

The least common denominator would be 9, because

a. you can't take 3 out of two in 2/9

b. you can multiply 2/3 by 3 to make 6/9

so the LCD is 9

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Find the possible value of n in the inequality -3n <81

jek_recluse [69]

<span>Given the inequality -3n < 81, if we divide both sides by -3, the inequality sign changes. That means we have n > -27. Thus, the answer is d. </span>

8 0

3 years ago

Read 2 more answers

The width of a rectangle is fifteen feet less than its length. If the area of the rectangle is 54 square feet, find the width.

PolarNik [594]

Answer:

3 ft

Step-by-step explanation:

It is because 3 times 18 is 54 and 3 is 15 less than 18

4 0

3 years ago

The cost to print digital photos at a local store is

snow_tiger [21]

<h2>The cost is same for both the options if we purchase 27 photos</h2>

Step-by-step explanation:

Cost of a photo at a local store is $0.25 per photo. This cost can be modeled to be linear in number of photos as $C_{1}(x)=0.25x$ .

Cost of photos purchased online is $0.15 per photo. However there is a shipping cost of $2.70. This can also be modeled to be linear in number of photos as $C_{2}(x)=2.70+0.15x$ .

Let us assume both costs are the same if we purchase $n$ photos.

So, $C_{1}(n)=C_{2}(n)$

$0.25n=2.70+0.15n$

$0.10n=2.70$

$n=27$

∴ On purchasing 27 photos, cost for both the options is the same.

5 0

3 years ago

Read 2 more answers

Which is a solution to the equation?<br> (х-2)(х + 5) = 18?

jok3333 [9.3K]

$\bf (x-2)(x+5)=18\implies \stackrel{\mathbb{F~O~I~L}}{x^2+3x-10}=18\implies x^2+3x-28=0 \\\\\\ (x-4)(x+7)=0\implies x= \begin{cases} 4\\ -7 \end{cases}$

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3 years ago

Completethe equationso that it has no solution.5x – 4 = 5 + ?

Naddik [55]

Step-by-step explanation:

5x−4=5

1 Add 44 to both sides.

5x=5+4

2 Simplify 5+45+4 to 99.

5x=9

3 Divide both sides by 55.

x=\frac{9}{5}

4 0

2 years ago