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3 years ago

9

Find the value of x. (x + 12) (x -9)

1 answer:

adelina 88 [10]3 years ago

5 0

Answer:

find the value of ×

× +23)

Step-by-step explanation:

(×+25)

(×+12)

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Plzz help Solve for x x ÷3 3/10 =2 2/5

Svet_ta [14]

Answer:

$\huge\boxed{x=7\dfrac{23}{25}}$

Step-by-step explanation:

$x\div3\dfrac{3}{10}=2\dfrac{2}{5}\\\\\text{convert the mixed number to the impropper fraction}\\\\3\dfrac{3}{10}=\dfrac{3\cdot10+3}{10}=\dfrac{33}{10}\\\\2\dfrac{2}{5}=\dfrac{2\cdot5+2}{5}=\dfrac{12}{5}\\\\x\div\dfrac{33}{10}=\dfrac{12}{5}\\\\x\times\dfrac{10}{33}=\dfrac{12}{5}\qquad\text{multiply both sides by}\ \dfrac{33}{10}\\\\x\times\dfrac{10\!\!\!\!\!\diagup}{33\!\!\!\!\!\diagup}\times\dfrac{33\!\!\!\!\!\diagup}{10\!\!\!\!\!\diagup}=\dfrac{12}{5}\times\dfrac{33}{10}\\\\x=\dfrac{396}{50}$

$x=\dfrac{198}{25}\\\\x=\dfrac{175+23}{25}\\\\x=\dfrac{175}{25}+\dfrac{23}{25}\\\\x=7\dfrac{23}{25}$

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3 years ago

10=c+d<br> c is one more than d <br> what is the value of c?<br>with working out

Leya [2.2K]

C= 5.5 I'm pretty sure that's the answer

d= 4.5 and c+ 5.5
Because 4.5 plus 1.0 = 5.5
since c is one more than d

5.5 plus 4.5 = 10

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3 years ago

sammys mother is 2 years more than 3 times as old as sammy. their combinied age is 42. how old are sammys mother and sammy

kozerog [31]

Sammy's mother is 32 and Sammy is 10.

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4 years ago

Which symmetries does a right square pyramid have? Check all that apply.

Digiron [165]

Answer:a.c,d

Step-by-step explanation:

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3 years ago

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mariarad [96]

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3 years ago