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3 years ago

What percent is equivalent to 1230? A12% B30% C40% D60%

1 answer:

6 0

To find the percentage of 12/30 you simply have to divide 12 by 30, and then multiply it by 100

(12/30)100

(0.4)100

40%

C) 40% is your answer

Hope this helps!

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A scientist is cooling a liquid at a steady rate. The temperature of the liquid changed by −82 1/2 °C over 2 1/5 minutes. What w

dangina [55]

Answer: $37.5^{\circ}$ or $37\dfrac{1}{2}^{\circ}$

Step-by-step explanation:

Given : The temperature of the liquid changed by $-82\dfrac{1}{2}^{\circ}C$ over $2\dfrac{1}{5}$ minutes.

We can write $[tex]82\dfrac{1}{2}=\dfrac{82\times2+1}{2}=\dfrac{165}{2}$

$2\dfrac{1}{5}=\dfrac{11}{5}$

Now, the statement becomes ,

The temperature of the liquid changed by $-\dfrac{165}{2}^{\circ}C$ over $\dfrac{11}{5}$ minutes.

i.e. temperature changed in $\dfrac{11}{5}$ minutes = $-\dfrac{165}{2}^{\circ}C$

Now, by Unitary method,

The temperature changed in 1 minute = $\dfrac{165}{2}\times\dfrac{5}{11}^{\circ}C$

⇒ The temperature changed in 1 minute = $37.5^{\circ}$ or $37\dfrac{1}{2}^{\circ}$

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3 years ago

If f and g are functions of time, and at time t = 3, f equals 8 and is rising at a rate of 2 units per second, and g equals 3 an

Sidana [21]

It gives you a few values. The values of f(t) and g(t) when time t=3, and
the values of the rates of change (first derivative) for both at the same time t=3.

f(3) = 8 unit
f ' (3) = 2 unit/s
g(3) = 3 unit
g ' (3) = 8 unit/s

--and also a value of the ratio of the two functions at t=3
$\frac{f(3)}{g(3)} = \frac{8}{3}$

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4 years ago

Figure JKLM is similar to figure PQRS.

Elis [28]

Answer:

the answer is D

Step-by-step explanation:

i found it in quizzes and Quizlet

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3 years ago

Brandon made $47.00 in 2 hours. How much would he make in 9 hours?

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9/2=4.5 47x4.5=$235

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4 years ago

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3 years ago