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Nata [24]
3 years ago
9

Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how man

y hours randi spent shoveling and salting to earn a profit od $60.00
Mathematics
1 answer:
notka56 [123]3 years ago
4 0

Answer:

Profit earned by Randi on her last snow shoveling and salting job= $ 60

Let number of hours spent by Randi on that day while working as a shoveler and salter = x hours

Writing the statement in terms of inequality

→ Number of hours worked= Amount of profit earned

→ x=60

→If profit is less than $60.00, then Number of hours will be less.

→If Profit is more i.e greater than $60.00, Number of hours will be more.




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Answer:

m = 0.8

Step-by-step explanation:

The mean can be calculated as:

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Then, all the values can be added and the expression turns into:

\frac{22 + m }{6} = 3.8

The expression can be simplified by multiplying on both sides by 6:

\frac{22 + m }{6}*6 = 3.8*6

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Which makes m = 0.8

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3 years ago
A=(whole number less than 6)​
OLEGan [10]

Answer:

then the answer is

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2x^2+xy-3y^2

Step-by-step explanation:

Start by taking everything out of the parentheses:

3x^2-2xy-2y^2-x^2-(-3xy)-(y^2)

Note two negatives make a positive:

3x^2-2xy-2y^2-x^2+3xy-y^2

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3x^2-x^2-2xy+3xy-2y^2-y^2

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Find the set of values of k for which the line y=kx-4 intersects the curve y=x²-2x at 2 distinct points?
Sonbull [250]

Answer:

-6 < k < 2

Step-by-step explanation:

Given

y = x^2 - 2x

y =kx -4

Required

Possible values of k

The general quadratic equation is:

ax^2 + bx + c = 0

Subtract y = x^2 - 2x and y =kx -4

y - y = x^2 - 2x - kx +4

0 = x^2 - 2x - kx +4

Factorize:

0 = x^2 +x(-2 - k) +4

Rewrite as:

x^2 +x(-2 - k) +4=0

Compare the above equation to: ax^2 + bx + c = 0

a = 1

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c =4

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b^2 - 4ac > 0

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k < 2 or k >-6

So, the set of values of k is:

-6 < k < 2

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