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3 years ago

Help... do I add or divide?

Mathematics

2 answers:

Mekhanik [1.2K]3 years ago

5 0

The answer is A. You are trying to find how much she makes an hour but we know she made 480 for 24 so you divide 480/24 and get 20

Murrr4er [49]3 years ago

3 0

Answer:

Lisa earned in 24 hours work = $480

Lisa earned in 1 hour work = $480/24

= $20

Right option is (a) $20.

 $\\$ 

Step-by-step explanation:

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Jasmine took a cab Home form her office the cab charged a flat free of 4$ plus $2 per mile jasmine paid $33 for the trip how man

Lostsunrise [7]

33 - 4 = 29.

29 / 2 = 14.5

She traveled 14.5 miles in the cab.

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3 0

3 years ago

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Which are the solutions of x² = 19x + 12

Sever21 [200]

Answer:

$\{x=\frac{19-\sqrt{409} }{2}\ , \ x=\frac{19+\sqrt{409} }{2}\}$

Step-by-step explanation:

x² = 19x + 12

⇔ x² - 19x - 12 = 0

Calculating the discriminant :

b² - 4ac = (-19)² - 4×1×(-12) = 409

The discriminant is positive ,then the equation has two solutions.

$x=\frac{19-\sqrt{409} }{2} \ \ or\ \ x=\frac{19+\sqrt{409} }{2}$

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2 years ago

What city is this please no links

Artist 52 [7]

Answer:

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7 0

3 years ago

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13(6x – 5) – x = 13 – 2(x + 1)

Murrr4er [49]

Answer:

x = 76/79

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3 years ago

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What is the solution for the system of equations x+y=2 and x-y=4

dmitriy555 [2]

X+y=2 (label equation one)
x-y=4 (label equation two)

y=-x+2 (equation one rearranged, label this equation equation three)

sub 3 into 2
x-(-x+2)=4
x+x-2=4
2x-2=4
2x=6
x=3
sub x=3 into equation one

3+y=2
y=-1

therefore x=3 and y=-1

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3 years ago