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3 years ago

Simplify the following expression:

Mathematics

1 answer:

Rufina [12.5K]3 years ago

8 0

Answer:

3x^2 - 8x - 3y

Step-by-step explanation:

7y + 2x – 10y + 3x^2 - 10x

Rearrange the terms

3x^2 + 2x -10x – 10y +7y

Combine like terms

3x^2 -8x-3y

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It is 120

Step-by-step explanation:

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4 years ago

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Vilka [71]

If i’m not wrong the answer should be B

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3 years ago

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A number increased by five is equal to thirty-four?<br>

Andre45 [30]

Answer:

that would be 29 my friend

Step-by-step explanation:

29 plus 5 is 34

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3 years ago

URGENT!!LAST QUESTION!!!! PLS JUST TAKE A LOOK! EASY BUT I AM DUMB!!!!!! WILL GIVE BRANLIEST!!

Luden [163]

Answer:

x = 28

Step-by-step explanation:

If the quadrilaterals are similar, there is a proportionality among their sides:

The top side in the large figure (70) is to the top side in the small figure (10) in the same ratio as the left side (x) in the large figure is to the left side in the small figure (4). This in math terms is written as:

$\frac{70}{10} =\frac{x}{4}$

We can then solve for the unknown "x" by multiplying both sides by 4:

$\frac{70}{10} =\frac{x}{4}\\\frac{70\,*\,4}{10} =x\\x=28$

4 0

3 years ago

3) Solve these problems that have more than one answer.

MaRussiya [10]

Answer:

225

Step-by-step explanation:

Mary = 3x (3 times Carey)

Carey = x

Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)

3x + x + x/2 = 405

4x + x/2 = 405

8x/2 + x/2 (treat these as fractions) = 405

9x/2 = 405

9x = 810 (cross multiply)

x = 90

Mary = 3(90) 270

Carey = 90

Barry = 90/2 45

Mary - Barry

270 - 45 = 225

Hope this helps! :)

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3 years ago

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