8 Weinberg Civics & Mingo-Math Ms. Lee- Basic Thea.
4-7: MathXL for School: Practice & Problem Solving
O Assignment is past due (12/15/21
4.7.PS-13
Question Help
Shopping Two friends shop for fresh fruit. Elena buys a watermelon for $8.45 and 5 pounds of
cherries. Taniy buys a pineapple for $2.15 and 4 pounds of cherries. Use the variable p to
represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent
how much more Elena spent.
CD
The expression represents how much more Elena spent than Taniy.
(Simplify your answer. Use integers or decimals for any numbers in the expression.)
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Question 6
of 12
Back
hat

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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. writing something that happened to you

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hope this plz make brainliest

step-by-step explanation:

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step-by-step explanation: