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3 years ago

Billy is paid $100 for 25 hours of work. What is his hourly rate?

Mathematics

1 answer:

lara [203]3 years ago

6 0

Answer:

4 dollars per hour

Step-by-step explanation:

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425L + 125S >= 4,800 Total 15 devices

Mkey [24]

Since He Sells 15 Iteam The He Meet His Goal Of L + S >= 12

As Far As The Other Inequlty

425*9 + 125*6 = $4575 (Goal Acheived)

The Answer Is Yes He Meets Both Of His Goals

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3 years ago

Write the equation of the line that contains the given point and the given slope. (-46,45), slope=2.5 please help and explain

Elis [28]

Answer:

y = 2.5x + 160

Step-by-step explanation:

b = 45 - (2.5)*(-46)

b = 45 + 160

b = 205

3 0

3 years ago

Read 2 more answers

Solve 5y'' + 3y' – 2y = 0, y(0) = 0, y'(O) = 2.8 y(t) =( Preview

Karolina [17]

Answer:

$y=\frac{4}{5}e^{t}-\frac{4}{5}e^{-\frac{2}{5}t}$

Step-by-step explanation:

The given equation 5y'' + 3y' - 2y =0 can be written as

$(5D^{2}+3D-2)y(t)=0$

Solving for complementary function we have Roots of $(5D^{2}+3D-2)$ as follows

$(5D^{2}+5D-2D-2)$

$5D(D+1)-2(D+1)=0\\\\(5D-2)(D+1)=0\\\\\therefore D=-1\\D=+2/5$

Thus the complementary function becomes

y= $y=c_{1}e^{m_{1}t}+c_{2}e^{m_{2}t}$

where

$m_{1},m_{2}$ are calculated roots

thus solution becomes

$y=c_{1}e^{-t}+c_{2}e^{\frac{2}{5}t}$

Now to solve for the coefficients we use the given boundary conditions

$y(0)=0\\\\\therefore c_{1}+c_{2}=0\\\\y'(0)=-c_{1}+\frac{2}{5}c_{2}=2.8\\\\\therefore c_{2}+\frac{2}{5}c_{2}=2.8\\\\c_{2}=2\\\\\therefore c_{1}=-2}$

hence the solution becomes

$y=-2e^-{t}+2e^{\frac{2}{5}t}$

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3 years ago

Fun two consecutive integers whose product is 4 less than the square of the smaller number

Rina8888 [55]

Answer:

Step-by-step explanation:

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3 years ago

Solve -r/4 < 8 A.r<-32 B. r. >-32 C.r < -2 D.r>-2

Gnom [1K]

$\frac{-r}{4}$

$Ans.\ B$

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4 years ago