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Mathematics, 15.12.2019 22:31 kyandrewilliams1

Ashirt originally cost $39.59, but it is on sale for $27.71. what is the percentage decrease of the price of the shirt? if necessary, round to the nearest percent.

ansver
Answers: 2
ansver
Answer from: Quest

i dont know

step-by-step explanation:

ansver
Answer from: Quest

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

y-y_{1}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x-x_{1})

y-30=\frac{26-30}{6-5}(x-5)

y-30=-4(x-5)

y-30=-4x+20

y=-4x+50

now, put y=a(n) and x=n,

a(n)=-4n+50

a(n)=-4n+46+4

a(n)=46-(n-1){\times}4

hence, option d is correct.

Ascientist cools some water at a constant rate. the graph and table show how the temperature of the
ansver
Answer from: Quest

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

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