Which mixed number is equal to 6.75?

2 answers:

5 0

<span>C. 6 3/4

Because: 6 is our whole number inside 6.75, now, we know the whole number in the fraction. Also, it must be a mixed number, that means it must contain a whole number and a fraction.

3/4 = .75
6 = 6

6.75 = 6 3/4</span>

Nadusha1986 [10]2 years ago

4 0

6.75
= 6+ 0.75
= 6+ 75/100
= 6+ 3/4
= 6 3/4

The correct answer is C. 6 3/4~

You might be interested in

97 people are surveyed and 32 of them agree with closing campus for lunch. Is it discrete or continuous

Anton [14]

Discrete

It is a specific value

4 0

3 years ago

6. A tank contains 100-gallon of pure water. At time t = 0, a solution containing 2 lb of salt per gallon flows into the tank at

SOVA2 [1]

Answer:

The answer is below

Step-by-step explanation:

Let Q represent the amount of salt in the tank at time t.

$\frac{dQ}{dt}= flow\ in - flow\ out\\ \\flow\ in=3\ gal/min*2\ lb/gal=6\ lb/min\\\\net\ gain\ in\ tank\ volume=3-4=-1, henceflow\ out= \frac{4Q}{100-t} \\\\\frac{dQ}{dt}= 6-\frac{4Q}{100-t} \\\\\frac{dQ}{dt}+ \frac{4Q}{100-t}=6\\\\The \ integrating\ factor\ is:\\\\IF=e^{\int\limits {\frac{4}{100-t} } \, dt }=e^{-4\int\limits {\frac{-1}{100-t}}=e^{-4ln(100-t)}=(100-t)^{-4}}\\\\Multiplying\ through \ by\ IF: \\\\(100-t)^{-4}\frac{dQ}{dt}+ (100-t)^{-4}\frac{4Q}{100-t}=6(100-t)^{-4}\\\\$

$Integrating:\\\\A(100-t)^{-4}=-2(100-t)^{-3}+c\\\\A=-2(100-t)+\frac{c}{(100-t)^{-4}} \\\\at, t=0,A=0\\\\0=-2(100-0)+\frac{c}{(100-0)^{-4}}\\\\c=0.02\\\\A=-2(100-t)+\frac{0.02}{(100-t)^{-4}}$

7 0

2 years ago

Help me please thank you!!

Alexxandr [17]

The answer to your problem is A because you must add them altogether but i might be wrong im just trying to help you out

5 0

2 years ago

An object falls 9 meters during the first second, another 27 meters during the second second, and then 81 meters more during the

marishachu [46]

360 meters is the answer as 9 meter in 1st second ,27 meter in 2nd and 81 in 3rd it is in a series of geometric progression ...of 9,27,81 in which 9*3 =27,27*3=81 so next number will be 81*3=243 total distance moved in 4 seconds is 243+81+27+9=360 meters

4 0

2 years ago

Write an addition sentence that helps you solve 15-9.

Lemur [1.5K]

Answer:

I have 15 cookies and my brother ate 9 now I have 6 cookies.

8 0

2 years ago