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3 years ago

What is the solution to the equation 3(x-1)-2(2x+1)=8(x-1)

2 answers:

8 0

$3(x-1)-2(2x+1)=8(x-1)$ Distribute 3 to x and -1, -2 to 2x and 1, and 8 to x and -1.
$3x-3-4x-2=8x-8$ Simplify
$-x-5=8x-8$ Add x and 8 on both sides.
$3=9x$ Divide by 9
$x= \frac{3}{9} = \frac{1}{3}$
$\frac{1}{3}$ is your answer

Fittoniya [83]3 years ago

5 0

Answer:its C

insta aesthetic.dummy

Step-by-step explanation:

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Help me I don't know what is 10=n+19

Orlov [11]

Answer: n=-9

Step-by-step explanation:

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3 years ago

Read 2 more answers

1) Miguel has a gift card to an electronics store. He has $ 150 on the card. He purchased a DVD for $ 20 and some games for $12.

GrogVix [38]

Answer:

9 games

Step-by-step explanation:

If he purchase 1 game, he spent $12.50. If he purchased 2 games, he spent 2(12.50) = $25.

This means he spent 12.5x for x number of games.

His total spending will be 12.5x + 20. He has $17.50 left on the card from $150.

150 - (12.5x + 20) = 17.5

150 - 12.5x -20 = 17.5

130 - 12.5x = 17.5

-12.5x = 17.5 - 130

-12.5x = -112.5

x = 9

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3 years ago

Which equation is equivalent to the equation 6x+9=12?

erica [24]

Answer:

x=1/2

Step-by-step explanation:

7 0

3 years ago

What two numbers multiply to get 25 and add to -10

SOVA2 [1]

$x;\ y-the\ numbers\\\\ \left\{\begin{array}{ccc}xy=25\\x+y=-10&\to x=-10-y\end{array}\right\\\\subtitute:\\(-10-y)y=25\\(-10)(y)-y(y)=25\\-10y-y^2=25\\-y^2-10y-25=0\ \ \ \ |change\ the\ signs\\y^2+10y+25=0\\y^2+5y+5y+25=0\\y(y+5)+5(y+5)=0\\(y+5)(y+5)=0\\(y+5)^2=0\iff y+5=0\to \boxed{y=-5}\\\\subtitute\ the\ value\ of\ y\ to\ the\ equation\ x=-10-y\\x=-10-(-5)\\x=-10+5\\\boxed{x=-5}\\\\Answer:\boxed{-5\ and\ -5}$

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3 years ago

A bowl has the shape of a hemisphere whose diameter is 14 centimeters. If this bowl is filled with water, how many cubic centime

ASHA 777 [7]

Answer:

The cubic centimeters of water it will take to fill the bowl is 718.67 cm³

Step-by-step explanation:

Given;

diameter of the hemisphere, d = 14 cm

radius of the hemisphere, r = d/2 = 14/2 = 7 cm

The volume of the hemisphere is calculated as;

$V = \frac{2}{3} \pi r^3\\\\V = \frac{2}{3} \times \frac{22}{7} \times (7 \ cm)^3\\\\V = 718.67 \ cm^3$

The cubic centimeters of water it will take to fill the bowl is 718.67 cm³

4 0

3 years ago