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4 years ago

Simplify 2(x + 4) + 7(x – 5) + 3. Show each step of your work.

Mathematics

2 answers:

nata0808 [166]4 years ago

6 0

2x + 8 + 7x - 35 + 3
2x + 7x - 27 + 3
9x - 24

Sidana [21]4 years ago

6 0

2(x + 4) + 7(x – 5) + 3
2x + 8 + 7x - 35 + 3 //distributive property.
9x - 23 // combine like variables

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I need help with this plz

Alisiya [41]

Answer:Mmm

Step-by-step explanation:

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2 years ago

What is 225 square feet of 450

erik [133]

I assume you mean what percentage it is? if so:

225/450 = 50%

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4 years ago

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notsponge [240]

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3 years ago

Could someone help me please?

fenix001 [56]

Answer:

a. 7.2

b. 6

Step-by-step explanation:

Since the side lengths of similar polygons are proportional to each other, therefore:

$\frac{b}{10} = \frac{9}{15} = \frac{a}{12}$

Thus, let's find b using:

$\frac{b}{10} = \frac{9}{15}$

Cross multiply

$b*15 = 10*9$

$15b = 90$

Divide both sides by 15

b = 6

Let's find a using:

$\frac{9}{15} = \frac{a}{12}$

Cross multiply

9*12 = 15*a

108 = 15a

Divide both sides by 15

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5 0

3 years ago

After allowing 20% discount on the marked price with 13%

saveliy_v [14]

<u>Answer:</u>

The marked price of the article is 22,600

<u>Explanation: </u>

Given, selling price of an article SP = Rs. 18080

To calculate marked price MP, the formula used is

$\mathrm{SP}=\mathrm{MP}\left(1-\frac{D \%}{100}\right)$

Discount D = 20%

Substituting the given values

SP = $\mathrm{MP}\left(1-\frac{20}{100}\right)$

18080 = $\mathrm{MP}\left(1-\frac{1}{5}\right)$

$18080=\mathrm{MP}\left(\frac{4}{5}\right)$

$\mathrm{MP}=\frac{18080 \times 5}{4}$

MP = Rs. 22,600

Therefore the marked price of the article is 22,600

6 0

3 years ago