Jenny has $25 and she earns $10 for each lawn that she mows. jenny wants to buy a concert ticket that costs $65. what is the minimum number of lawns jenny needs to mow to be able to buy the concert ticket

The minimum number of times Jenny needs to mows the lawn be  4 .

Step-by-step explanation:

Let us assume that the number of times Jenny needs to mows the lawn be x .

As given

Jenny has $25 and she earns $10 for each lawn that she mows.

Jenny wants to buy a concert ticket that costs $65.

Than the equation becomes

25 + 10x = 65

10x = 65 - 25

10x = 40

x = 4

Therefore the minimum number of times Jenny needs to mows the lawn be  4 .

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

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step-by-step explanation: