All categories

2 years ago

3 (3x+5)=2 (2x-5) solve for x

2 answers:

8 0

The answer is x=-5

Here’s the steps:

3(3x+5)=2(2x-5)
Distribute
9x+15=4x-10
Subtract 4x from each side
5x+15=-10
Subtract 15 from each side
5x=-25
Divide each side by 5
x=-5

marin [14]2 years ago

3 0

Answer:

-5

Step-by-step explanation:

3(3x + 5) = 2(2x - 5)

9x + 15 = 4x - 10

9x - 4x = -15 - 10

5x = - 25

x = -5

You might be interested in

198 cents to 234 cents

Anarel [89]

Answer:

i dont understand what ur asking

Step-by-step explanation:

6 0

3 years ago

Which statements are true about the ordered pair (2, 3) and the system of equations?

kifflom [539]

The answer is f when 2,3 is put in for the x and y then 18 should come out 3×2=6
4×3=12 12+6=18

7 0

3 years ago

the perimeter of a rectangular plot of land whoose length is 2x+15and width x-10m is 80cm find the area of x

Mnenie [13.5K]

Answer:

x=25

the area of x squared is then 625

Step-by-step explanation:

3x +5 = 80

3x= 75

x=25

the area of x squared is then 625

5 0

3 years ago

X and y intercepts of y=3x-6

Slav-nsk [51]

Answer:

x intercept=2, y intercept= -6

Step-by-step explanation:

X Intercept is when the graph crosses the X Axis, point of intersection. To find it, just convert into standard form and solve for x by getting rid of y.

The Y-intercept is where the line crosses the y-axis, point of intersection. It is the constant in the slope-intercept form.

5 0

3 years ago

Read 2 more answers

"a u.S. 1-cent coin (a penny) has a diameter of 19 mm and a thickness of 1.5 mm". Assume the coin is made of pure copper, whose

choli [55]

the question is Calculate the value of the copper in the coin

Step 1

Find the volume of the coin

we know that

the volume of a cylinder is equal to

$V=\pi r^{2}h$

where

r is the radius of the coin

h is the thickness of the coin

in this problem we have

Diameter=19 mm=1.9 cm

r=D/2------> r=1.9/2=0.95 cm

h=1.5 mm=0.15 cm

substitute the values in the formula

$V=\pi*0.95^{2}*0.15=0.425\ cm^{3}$

Step 2

Find the mass of copper in the coin

we know that

the density is equal to

$Density=mass/volume$

Solve for the mass

$mass=Density*volume$

we have

$Density=8.9\ gr/cm^{3}\\Volume=0.425\ cm^{3}$

substitute in the formula

$mass=8.9*0.425=3.785\ gr$

Step 3

Find the cost

we know that

the market price of the copper is $2.15 per pound

1 pound=453.592 grams

convert gram to pounds

3.785 gr=3.785/453.592=0.0083 pounds

0.0083*$2.15=$0.018=$0.02

therefore

the answer is

$0.02

3 0

3 years ago