1: 3/4 2: 6/8 I’m pretty sure is the answer sorry if I’m wrong
You simply try put the whole example in an equation form.
vc= velocity of car
vp= velocity of the plane
know it is given that the time of both travels is the same, and using the famous velocity time equation you can say,
t=(distance by the car/vc)=(distance by the plane/vp)
so
(150/vc)=(600/vp)
Now, given that vp=150+vc
We have;
(150/vc)=(600/150+vc)
multiply and you get an equality of
150(150+vc)=600vc
150^2+150vc=600vc
make all vc at one side, you have;
150^2=600vc-150vc
then; vc=150^2/450=50
and use the vp=150+vc equation again and you get,
vc=200mph.
Hope this helps.
OK, here, we can simply apply the values and solve for which one works.
23.50 * 3 = 70.50
23.25(3) + 17 = 86.75
Now, they are not equal.
Try another one!
27.50 * 5 = 137.50
23.25*5 + 17 = 133.25
Not correct either!!
Try another!
27.50 * 6 = 165
23.25 *6 + 17 = 156.50
NO! Lets try the second one!!
27.50*4 = 110
23.25 * 4 + 17 = 110
THIS ONE IS CORRECT!
Answer: 4 hours is when they have the same charges.
The correct answer to the simplified form of the mixed fraction equation is determined as
.
<h3>
Simplification of the fraction</h3>
The given fraction is written as follows;
![3 (\frac{7}{5} x + 4)-2(\frac{3}{2} -\frac{5}{4} x)](https://tex.z-dn.net/?f=3%20%28%5Cfrac%7B7%7D%7B5%7D%20x%20%2B%204%29-2%28%5Cfrac%7B3%7D%7B2%7D%20-%5Cfrac%7B5%7D%7B4%7D%20x%29)
![=3 (\frac{7}{5} x + 4)-2(\frac{3}{2} -\frac{5}{4} x)\\\\= \frac{21}{5} x + 12 - 3 + \frac{5x}{2} \\\\= \frac{21}{5} x +9 + \frac{5x}{2}\\\\= \frac{42x + 90+ 25x}{10} \\\\= \frac{67x}{10} + 9](https://tex.z-dn.net/?f=%3D3%20%28%5Cfrac%7B7%7D%7B5%7D%20x%20%2B%204%29-2%28%5Cfrac%7B3%7D%7B2%7D%20-%5Cfrac%7B5%7D%7B4%7D%20x%29%5C%5C%5C%5C%3D%20%5Cfrac%7B21%7D%7B5%7D%20x%20%2B%2012%20-%203%20%2B%20%5Cfrac%7B5x%7D%7B2%7D%20%5C%5C%5C%5C%3D%20%5Cfrac%7B21%7D%7B5%7D%20x%20%2B9%20%2B%20%5Cfrac%7B5x%7D%7B2%7D%5C%5C%5C%5C%3D%20%5Cfrac%7B42x%20%2B%2090%2B%2025x%7D%7B10%7D%20%5C%5C%5C%5C%3D%20%5Cfrac%7B67x%7D%7B10%7D%20%2B%209)
Thus, the correct answer to the simplified form of the mixed fraction equation is determined as
.
Learn more about mixed fractions here: brainly.com/question/1746829
The hard part of this question is decoding the equation.
![\angle BAC = \arcsin\left( \dfrac{3.1}{4.5} \right)](https://tex.z-dn.net/?f=%5Cangle%20BAC%20%3D%20%5Carcsin%5Cleft%28%20%5Cdfrac%7B3.1%7D%7B4.5%7D%20%5Cright%29)
There's nothing to do but ask the calculator.
![\angle BAC = \arcsin\left( \dfrac{3.1}{4.5} \right) \approx 43.54^\circ](https://tex.z-dn.net/?f=%5Cangle%20BAC%20%3D%20%5Carcsin%5Cleft%28%20%5Cdfrac%7B3.1%7D%7B4.5%7D%20%5Cright%29%20%5Capprox%2043.54%5E%5Ccirc)
Answer: 44°