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3 years ago

HELPPPP 3(1 – 2x) > 3 - 6x

Mathematics

1 answer:

Setler79 [48]3 years ago

3 0

Answer:

false; they are equal.

brainliest?

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lesya692 [45]

Answer:

x = 1.2

Step-by-step explanation:

AD/AB = DE/BC (Similarity Theorem)

AD = 6 + 4 = 10

AB = 6

DE = 2

BC = x

Plug in the values

10/6 = 2/x

Cross multiply

10*x = 2*6

10x = 12

Divide both sides by 10

x = 12/10

x = 1.2

8 0

3 years ago

Write the equation of the line in fully simplified slope-intercept form.

coldgirl [10]

Y= -1/2x - 4

hope this helps! :)

7 0

3 years ago

Round to the nearest tenth (TIMED PLEASE help!!!)

vredina [299]

Answer:

$A = 180 - (90 + 72) \\ A= 18° \\ \\ from \: pythogoras \\ a = 3.4 \\ b = 10.5$

4 0

3 years ago

25 is 32 percent of what number?

alekssr [168]

Say n = the number.
n * 32% = 25
25/32% = n
n = 78.125

6 0

4 years ago

Read 2 more answers

When two computers are working together, they can finish updating software in 9 minutes. How long would they take individually t

tensa zangetsu [6.8K]

First computer takes x min. For 1 min it does 1/x part of work.

Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.

Both computers for one min do (1/x+1/(x+24)) part of work.

At the same time, both computers for one min do 1/9 part of work.

$\frac{1}{x} + \frac{1}{x+24} = \frac{1}{9} 
\\ \\ \frac{x+24+x}{x(x+24)} = \frac{1}{9} 
\\ \\9(2x+24)=x^{2} +24x
\\ \\ 18x+216=x^{2} +24x
\\ \\ x^{2}+6x-216=0
\\ \\ D=b^{2}-4ac=36+4*216 = 900
\\ \\ x= \frac{-b+/- \sqrt{D} }{2a} = \frac{-6+/-30}{2} 
\\ \\ x_{1}=-18, x_{2}=12

We can use only positive number here. So, 

for the first computer x=12 min,

 for second computer x+24=12+24= 36 min

Answer 12 min and 36 min.$

7 0

4 years ago