2 years ago

PLEASE HELP WILL MARK BRAINLIEST

Mathematics

1 answer:

cricket20 [7]2 years ago

3 0

Answer:

I would say grade 7

Step-by-step explanation:

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Solve the expression and find the value of x.

vovangra [49]

$\large\underline{\sf{Solution-}}$

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$\sf\longmapsto \dfrac{x + 1}{10} - \dfrac{3x - 3}{5} = 2$

$\sf\longmapsto \dfrac{(x + 1) - 2(3x - 3)}{10} = 2$

$\sf\longmapsto \dfrac{x + 1 - (6x - 6)}{10} = 2$

$\sf\longmapsto \dfrac{x + 1 - 6x + 6}{10} = 2$

$\sf\longmapsto \dfrac{ - 5x + 7}{10} = 2$

$\sf\longmapsto - 5x + 7 = 20$

$\sf\longmapsto - 5x = 20 - 7$

$\sf\longmapsto - 5x = 13$

$\sf\therefore x = - \dfrac{13}{5}$

Hence, the value of x will be -13/5 respectively.

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2 years ago

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Andrej [43]

Answer:

it will take him 9 weeks to earn the rest of what he needs.

Step-by-step explanation:

if he already has $105, then he will need $270 more.

Divide 270 by 30(the amount of money he gets each week) and you will get 9.

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2 years ago

Solve, leaving in terms of a logarithm, with steps please! 160(0.4^x) +1=321

ludmilkaskok [199]

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Step-by-step explanation:

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Step-by-step explanation:

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