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3 years ago

Please help algebra test tomorrow

Mathematics

1 answer:

user100 [1]3 years ago

5 0

Dont open the links

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3[–x + (2 x + 1)] = x – 1

photoshop1234 [79]

Answer:

Step-by-step explanation:

$3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\$

Collect like terms

$3x -x =-1-3$

Add similar elements

$2x = -4\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2x}{2}=\frac{-4}{2}\\\\Simplify\\\\x = -2$

3 0

3 years ago

Which value of x makes the equation true? x – 5.1 = –7.6

ASHA 777 [7]

X-5.1 = -7.6
+5.1 +5.1
X= -2.5

7 0

3 years ago

Read 2 more answers

A washer and a dryer cost $713 combined. The washer costs $37 less than the dryer. What is the cost of the dryer

77julia77 [94]

Answer:

375

Step-by-step explanation:

713 - 37 = 676

676 divided by 2 = 338

That would be the washer but we need to add the 37 again for the dryer

338 + 37 = 375

3 0

3 years ago

BRAINLIEST FOR THE CORRECT ANSWER What is the slope-intercept equation for the line below?

disa [49]

Answer:

y=-2x-1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the volume of the rectangle 4 2/3cm,9 1/8cm, 2cm

amm1812

Answer:

$\large\boxed{V=85\dfrac{1}{6}\ cm^3}$

Step-by-step explanation:

The formula of a volume of a rectangular prism:

$V=lwh$

l - length

w - width

h - height

We have

$l=4\dfrac{2}{3}\ cm=\dfrac{4\cdot3+2}{3}\ cm=\dfrac{14}{3}\ cm\\\\w=9\dfrac{1}{8}\ cm=\dfrac{9\cdot8+1}{8}\ cm=\dfrac{73}{8}\ cm\\\\h=2\ cm$

Substitute:

$V=\dfrac{14}{3}\cdot\dfrac{73}{8}\cdot2=\dfrac{7}{3}\cdot\dfrac{73}{2}\cdot1=\dfrac{511}{6}=85\dfrac{1}{6}\ cm^3$

6 0

3 years ago