All categories

4 years ago

8th grade math 1.6(1 + 0.5n) - 3, 2 = 1.1(n - 6.8) please answer with work

Mathematics

2 answers:

Brrunno [24]4 years ago

7 0

Answer: 5.4945...

Step-by-step explanation:

1.6 (1 + 0.5n) − 3 , 2 = 1.1 (n − 6.8)

Rewrite the equation as 1.1 (n − 6.8) = 2.

1.1 (n − 6.8) = 2

Divide each term by 1.1 and simplify.

Divide each term in 1.1 (n − 6.8) = 2 by 1.1.

1.1 (n − 6.8)/1.1 = 2/1.1

Cancel the common factor of 1.1.

n − 6.8 = 2/1.1

Divide 2 by 1.1.

n − 6.8 = 1.81...

Move all terms not containing n to the right side of the equation.

Add 6.8 to both sides of the equation.

n = 1.81... + 6.8

Add 1.81... and 6.8.

n = 8.618...

Replace the variable n with 8.618... in the expression.

1.6 (1 + 0.5 (8.618...)) − 3

Simplify each term.

Multiply 0.5 by 8.618...

1.6 (1 + 4.309...) − 3

Add 1 and 4.309...

1.6 ⋅ 5.309... − 3

Multiply 1.6 by 5.309...

8.4945... − 3

Subtract 3 from 8.4945...

5.4945...

mash [69]4 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Fractional Equations Help with steps

Sliva [168]

Answer:

see explanation

Step-by-step explanation:

(e)

$\frac{2x-1}{3}$ - $\frac{3x-1}{4}$ = 1

Multiply through by 12 to clear the fractions

4(2x - 1) - 3(3x - 1) = 12 ← distribute parenthesis and simplify

8x - 4 - 9x + 3 = 12

- x - 1 = 12 ( add 1 to both sides )

- x = 13 ( multiply both sides by - 1 )

x = - 13

---------------------------------------------------------------

(f)

$\frac{3m}{4}$ - 5 = 24 ( add 5 to both sides )

$\frac{3m}{4}$ = 29 ( multiply both sides by 4 )

3m = 116 ( divide both sides by 3 )

m = $\frac{116}{3}$

--------------------------------------------------------------

(g)

$\frac{5(y+2)}{2}$ - $\frac{4(y+1)}{3}$ = 3

Multiply through by 6 to clear the fractions

15(y + 2) - 8(y + 1) = 18 ← distribute parenthesis and simplify

15y + 30 - 8y - 8 = 18

7y + 22 = 18 ( subtract 22 from both sides )

7y = - 4 ( divide both sides by 7 )

y = - $\frac{4}{7}$

4 0

4 years ago

45 + 30 = 100 - w Answer: Explanation:

MA_775_DIABLO [31]

Answer:

w = 25

Step-by-step explanation:

45+30 = 100 - w
75 = 100 - w
w = 100 - 75
w = 25

7 0

3 years ago

Read 2 more answers

10 Pts + Brainliest for the best answer.

Harrizon [31]

Answer:

NVU =150

Step-by-step explanation:

WVN + NVU = WVU

We know NVU = 2x+150 and WVU = x+176 and WVN = 26

Substituting these in

26+ 2x+150 = x+176

Combine like terms

176+2x= x+176

Subtract 176 from each side

176-176+2x= x+176-176

2x=x

Subtract x from each side

2x-x = x-x

x=0

NVU = 2x+150

0+150

NVU =150

7 0

4 years ago

Read 2 more answers

Rewrite 18y • 4x using the commutative property.

PIT_PIT [208]

Answer:

(1)18y x 4x(1)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A car travel at an average speed of 48 miles per hour. how many miles does it travel in 4 hours and 15 minutes

Nataliya [291]

48 miles times 4.25 = 204 miles
or
48 miles in 60 minutes
4 Hours and 15 minutes are 255 minutes
48/60=.08 miles per minute
255 * .08 = 204 miles

5 0

3 years ago

*8th grade math* 1.6(1 + 0.5n) - 3, 2 = 1.1(n - 6.8)￼ please answer with work

8th grade math 1.6(1 + 0.5n) - 3, 2 = 1.1(n - 6.8) please answer with work