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ELEN [110]
3 years ago
11

20 points! Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and recei

ved $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. Write an equation to represent this situation.
Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:

my mom it crack at the tame

Step-by-step explanation:

I I I yu hfugy7 jvc cdfbjdyng65yygdgggghnhghgfgvvgfvggvb cccghb

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Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
julsineya [31]

Answer:

see below

Step-by-step explanation:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage

After first dose residual drug amount is:

  • d= 500*0.045= 22.5 mg

After second dose:

  • d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum residual drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
5 0
3 years ago
Jen traveled a distance of 170 miles in 2 hours and 45 min. Express her speed, in miles per hour to the nearest tenth
sweet-ann [11.9K]

Jen is going around 85mph


8 0
3 years ago
What is the lead coefficient in the product of ( -2x -3)(4x + 5) *
Murljashka [212]

Answer:

Step-by-step explanation:

(-2x-3)(4x+5) = -(2x+3)(4x+5) = -(8x^2+12x+10x+15) = -8x^2 - 22x - 15

Leading coefficient is -8

4 0
3 years ago
Will give brainliest if answered *correctly** picture attached
lakkis [162]

Answer:

A, C, E

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Determine whether the equation represents a direct variation. If it does, find the constant of variation. 2y=5x+1
coldgirl [10]
It does represent a direct variation.

Direct variation: y = kx
y varies directly with x

Your equation 2y = 5x + 1 is in the form of y = kx but we need to divide out the 2 from 2y so we have the following
2y = 5x + 1
2y / 2 = 5 x/ 2 + 1/2
y = 5x / 2  + 1/2
y = kx
k = 5/2
k = constant of variation = 5/2
6 0
3 years ago
Read 2 more answers
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