3 years ago

How do I answer this question

Mathematics

1 answer:

Readme [11.4K]3 years ago

5 0

Answer:

x = 4

Step-by-step explanation:

-x + 6 = 0.5x

1.5x = 6

x = 4

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Write the following equation in standard form.<br><br> y=-3/7x-3

mylen [45]

$y = - \frac{3}{7}x - 3 \\$

Multiply sides by 7

$7y = - 3x - 21$

Plus sides 3x

$3x + 7y = 3x - 3x - 21$

$3x + 7y = - 21$

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3 years ago

How to solve 11x=2x^2+12 by factoring?

andreyandreev [35.5K]

2x^2-11x+12=0

Slip and slide
x^2-11x+24=0
(x-8)(x-3)
(x-8/2)(x-3/2)
(x-4)(2x-3)

Use ZPP
x-4=0
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2x=3
x=3/2

Final answer: x=3/2, x= 4

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3 years ago

Question 2 (16) 1.1 Add (7a2 + 5a - 6) and (-3a2 + 6a - 10) <br>

Murljashka [212]

7a2+ 5a-6-3a2+6a-10

Answer= 4a2 +11a-16

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3 years ago

A comapny's stock was selling 16$ a share. A month later it was selling at 20$ a share. What is the percentage gain?

son4ous [18]

Answer: 25%

Step-by-step explanation:

Given

Initial Cost of share $C.P.=16\$$

After a month, its selling price is $S.P.=20\$\ \text{per share}$

The gain percentage is given by

$\Rightarrow \text{Gain }\ \%=\dfrac{\text{S.P.-C.P.}}{\text{C.P.}}\times 100$

$\Rightarrow \text{Gain}\ \%=\dfrac{20-16}{16}\times 100=25\%$

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3 years ago

camilla earned a grade of 80% on a math test that has 20 problems. how many problems on this test did the student answered corre

notsponge [240]

Answer:

16 questions

Step-by-step explanation:

80% of 100 is 80, so we take that and divide it by 5 and we get 16.

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3 years ago

Read 2 more answers

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How do I answer this question