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Paladinen [302]

3 years ago

14

kim work as a salesperson for a phot studio. To find his earing for the week, he multiples his total sales by 0.175. his sales f

or the week of october 10 total $2,507.47 what did he earn for the week.

1 answer:

Aloiza [94]3 years ago

6 0

What do you think the answer to the question is?

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Determine whether the ratios 35 feet every 15 seconds and 7 feet every 2 seconds are equivalent.

murzikaleks [220]

Answer:

Step-by-step explanation:

Find the rate of those two statements:

28 ÷ 16 = 1.75

1.75 ft per seconds

7 ÷ 4 = 1.75

1.75 ft per seconds

Two statements have the same rate, therefore 28 feet every 16 seconds and 7 feet every 4 seconds are equivalent

5 0

1 year ago

A cold drink is poured out at 52°F. After 2 minutes of sitting in a 72°F room, its temperature has risen to 55°F. Find an equati

I am Lyosha [343]

Answer:

The model for the temperature of the drink can be written as

$T=72-20e^{-0.08t}$

Step-by-step explanation:

For a cold drink in a hotter room, we can say that the rate of change of temperature of the drink is proportional to the difference of temperature between the drink and the room.

We can model that in this way

$\frac{dT}{dt}=k*(T_r-T)$

If we rearrange and integrate

$\int\frac{dT}{(T-Tr)} =-k*\int dt\\\\ln(T-T_r)=-kt+C1\\\\T-T_r=Ce^{-kt}\\\\T=T_r+Ce^{-kt}$

We know that at time 0, the temperature of the drink was 52°F. Then we have:

$T=T_r+Ce^{-kt}\\\\52=72+Ce^0=72+C\\\\C=-20$

We also know that at t=2, T=55°F

$T=T_r+Ce^{-kt}\\\\55=72-20e^{-k*2}\\\\e^{-k*2}=(72-55)/20=0.85\\\\-2k=ln(0.85)=-0.1625\\\\k=0.08$

The model for the temperature of the drink can be written as

$T=72-20e^{-0.08t}$

7 0

3 years ago

Which is the graph of f(x) = (x + 3)(x – 2)?

vodka [1.7K]

Looks like this
Everything in one picture

4 0

3 years ago

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The ice cream store offers schools a discount of 12% for the month of June. The school decides to purchase ice cream bars for th

lilavasa [31]

Answer:

Divide the number of ice-cream bars into the number of people. Example: say you have 20 ice cream bars and 10 people you divide 20/10 and get 2 ice cream bars per person

Step-by-step explanation:

Are you also a simp for draco? :3

6 0

3 years ago

I lied-<br> (21.2) x (0.02)<br><br> (2.05) x (0.004)

Llana [10]

Answer:

oof

21.2 x 0.02 = 0.424

2.05 x 0.004 = 0.0082

Step-by-step explanation:

8 0

3 years ago

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