What are the domain and range of the function fx) 3x+5

Mathematics

1 answer:

RideAnS [48]3 years ago

3 0

Both domain & range are all real numbers

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If Andrea makes $10 per hour and Cassidy makes eight dollars per hour how much more by percent does Andrea make than Cassidy per

Alexus [3.1K]

Hey there!

Andrea makes 20% more than Cassidy.

Work:

10 x 0.20 = 2

10 - 2 = 8

So that proves it is 20%.

Hope this helps!

5 0

2 years ago

A farmer sold 35 bags of rice at 25 % profit. If he sold each bag for ?7500:00. How much was his profit on 25 of the lot.

Doss [256]

Suppose that the farmer had bought the rice at x dollars per bag and had sold them at a 25% markup. How much did the bags cost him before he added the markup? 1.25x =$75 results in $75/1.25, or $60 per bag.

If he sold 25 bags, his profit would be 1.25($60/bag)(25 bags) = $1875.

I very seriously doubt that the rice was $7500 per bag. Perhaps you meant $75/bag...?

6 0

3 years ago

Read 2 more answers

The table shows a linear function. <br><br> Which equation represents the function.

mote1985 [20]

Answer:

$\large\boxed{f(x)=\dfrac{3}{2}x-1}$

Step-by-step explanation:

$\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}$

$\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT$