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4 years ago

X/5 - 7 =18 Solve equation

Mathematics

2 answers:

lukranit [14]4 years ago

4 0

Answer: x=5

Step-by-step explanation:

5 x 5 = 25 - 7 = 18

so x=5

Nuetrik [128]4 years ago

4 0

Answer: x = 125

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

x/5 - 7 = 18

1/5x + -7 = 18

Step 2: Add 7 to both sides.

1/5x - 7 + 7 = 18 + 7

1/5x = 25

Step 3: Multiply both sides by 5.

5 * (1/5x) = (5) * (25)

x = 125

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Solve the system of linear equations below.

Mrac [35]

Answer:

I am not sure which one it is due to what you put in. I think it would be A.

x = 0

y = 2/3

Step-by-step explanation:

Step: Solve x + 6y= 4 for x:

x + 6y + −6y = 4 + −6y

x= −6y + 4

Step: Substitute −6y + 4 for x in 2x + 3y = 2:

2x + 3y = 2

2 (−6y + 4) + 3y = 2

−9y + 8 = 2

−9y + 8 + −8 = 2 + −8

−9y = −6

-9y/-9 = -6/-9

y = 2/3

Step: Substitute 2/3 for y in x = −6y + 4:

x = −6y + 4

x = -6 (2/3) + 4

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Sorry if it is long and confusing. But I hope this helps!

3 0

3 years ago

Marlon withdrew $25 from his savings account every week for 5 weeks. Which expression is the best choice to help him determine t

leva [86]

(25)(5)=125; he withdrew $125

8 0

3 years ago

Given m||n, find the value of x.

kkurt [141]

As angle x° and angle 76° are alternate interior angles their measure will be equal.

Which means :-

$x° = 76° \:$

Therefore , the value of x = 76° .

7 0

3 years ago

In his last game of bowling, Roberto earned a score of 241, and his average score increased from 205 to 209. What score would he

FrozenT [24]

Answer:

Robert would have needed 259 point to increase his average to 211.

Step-by-step explanation:

Averages are described by the following equations:

Initial average:

$\frac{x}{n} = 205$

$x = 205\cdot n$

Real average:

$\frac{x+241}{n+1} = 209$

$x + 241 = 209\cdot n + 209$

$x = 209\cdot n - 32$

$205\cdot n = 209\cdot n - 32$

$4\cdot n = 32$

$n = 8$

$x = 205\cdot (8)$

$x = 1640$

Expected average:

$\frac{x+y}{n+1} = 211$

$x + y = 211\cdot n+211$

$y = 211\cdot n + 211 - x$

$y = 211\cdot (8) + 211 - 1640$

$y = 259$

Robert would have needed 259 point to increase his average to 211.

7 0

4 years ago

Help me my future depends on it

pshichka [43]

Answer:

Step-by-step explanation:

3 0

3 years ago