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GREYUIT [131]
3 years ago
13

Ryan wants to rent a boat and spend at most $39. The boat costs $6 per hour, and Ryan has a discount coupon for $3 off. What are

the possible numbers of
hours Ryan could rent the boat?
Use t for the number of hours.
Write your answer as an inequality solved for t.​
Mathematics
1 answer:
UkoKoshka [18]3 years ago
3 0

Answer: t is less than or equal to 7.

Step-by-step explanation:

6t - 3 is less than or equal to 39.

Add 3 to both sides.

6t is less than or equal to 42.

Divide by 6.

t is less than or equal to 7.

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Find the equaton of the line passing through the points (2,11) and (-8, -19) y= ?x ?​
antoniya [11.8K]

Find the slope:

(-19 - 11) / (-8 - 2) = (-30/-10) = 3

Find the y intercept:

y = mx + b

11 = 3(2) + b

b= 5

So equation is:

y = 3x + 5

5 0
2 years ago
Suppose that x and y are both differentiable functions of t and are related by the given equation. Use implicit differentiation
stepan [7]

Answer:

Let z = f(x, y) where f(x, y) =0 then the implicit function is

\frac{dy}{dx} =\frac{-δ f/ δ x }{δ f/δ y }

Example:- \frac{dy}{dx}  = \frac{-(y+2x)}{(x+2y)}

Step-by-step explanation:

<u>Partial differentiation</u>:-

  • Let Z = f(x ,y) be a function of two variables x and y. Then

\lim_{x \to 0} \frac{f(x+dx,y)-f(x,y)}{dx}    Exists , is said to be partial derivative or Partial differentiational co-efficient of Z or f(x, y)with respective to x.

It is denoted by δ z / δ x or δ f / δ x

  • Let Z = f(x ,y) be a function of two variables x and y. Then

\lim_{x \to 0} \frac{f(x,y+dy)-f(x,y)}{dy}    Exists , is said to be partial derivative or Partial differentiational co-efficient of Z or f(x, y)with respective to y

It is denoted by δ z / δ y or δ f / δ y

<u>Implicit function</u>:-

Let z = f(x, y) where f(x, y) =0 then the implicit function is

\frac{dy}{dx} =\frac{-δ f/ δ x }{δ f/δ y }

The total differential co-efficient

d z = δ z/δ x +  \frac{dy}{dx} δ z/δ y

<u>Implicit differentiation process</u>

  • differentiate both sides of the equation with respective to 'x'
  • move all d y/dx terms to the left side, and all other terms to the right side
  • factor out d y / dx from the left side
  • Solve for d y/dx , by dividing

Example :  x^2 + x y +y^2 =1

solution:-

differentiate both sides of the equation with respective to 'x'

2x + x \frac{dy}{dx} + y (1) + 2y\frac{dy}{dx} = 0

move all d y/dx terms to the left side, and all other terms to the right side

x \frac{dy}{dx}  + 2y\frac{dy}{dx} =  - (y+2x)

Taking common d y/dx

\frac{dy}{dx} (x+2y) = -(y+2x)

\frac{dy}{dx}  = \frac{-(y+2x)}{(x+2y)}

7 0
3 years ago
What does slope?<br> example of slope?
iren2701 [21]
Rise over run would be a thing to start with since you use graphs<span />
8 0
3 years ago
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The cost for 3.25 pounds of coffee beans is $19.14. What is the cost of 1 pound of coffee beans
Soloha48 [4]
To find the cost of 1 pound, we need to divide $19.14 by 3.25 pounds. 19.14/3.25= 5.88923076923. We can round this to the nearest hundredths to make $5.89. So, the cost of 1 pound of coffee beans is $5.89. Hope this helped!
3 0
3 years ago
I need some help plss with this math
mestny [16]

Answer:

0

Step-by-step explanation:

If you look at -3 the other end is 0 so the answer is 0.

7 0
3 years ago
Read 2 more answers
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