3 years ago

Which expressions are equivalent to 15 ?

Mathematics

1 answer:

sergey [27]3 years ago

7 0

Answer:

I think is number A

What do you Think?

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What’s the answer to this please? Thanks!

Serjik [45]

Answer:

beacuse (2x-35)+75=180
(2x-35)=105
2x=140
x=70

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3 years ago

Between the time Iko woke up and lunchtime,the temperature rose by 11°.Then by the time he went to bed,the temperature dropped b

natali 33 [55]

Answer: Cannot be done

Step-by-step explanation:

This is impossible as there is no previous information and we don’t have a formula.

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3 years ago

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Multiply 4 11 6 20 66 19 17 66 20 17

schepotkina [342]

That’s weird for the answer i got 10/33

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2 years ago

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I need help with this please

aliya0001 [1]

Answer:

I’m not sure what that means but I think it’s the one with the blue

Step-by-step explanation:

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2 years ago

Please solve all with explanation

garri49 [273]

Answer:

1. $\frac{x^2}{y^8}$

2 a) $\frac{-49}{2}$

b) 0

3. x = 10

Step-by-step explanation:

$(\frac{x^{-3}y^4}{x^{-2}})^{-2}\\({x^{-3+2}y^4})^{-2}\\({x^{-1}y^4})^{-2}({x^{-1*-2}y^{4*-2})= \frac{x^2}{y^8}$

2. a)

$2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12] -0\\\frac{-49}{2}$

$-a^2b^2 - 3a^3b^2\\-\frac{1}{9}*1 - 3 * \frac{-1}{27} *1\\-\frac{1}{9} + \frac{1}{9}\\0$

$\frac{3}{4}x + \frac{5}{6} = 5x -\frac{125}{3} \\\frac{5}{6} + \frac{125}{3} = 5x - \frac{3}{4}x\\\frac{5+250}{6} = \frac{20x -3x}{4}\\\frac{255}{6} = \frac{17x}{4}\\x = 10$

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2 years ago