Answer:
b=5
Step-by-step explanation:
So, they basically equal each other since they both equal a.
6b+20=4b+30
Your first step is to move the variable to one side, by that I mean to subtract. You have to subtract the smallest number that has a variable, in this case it would be 4b.
6b+20= 4b+30
-4b -4b
Once you have subtracted the variable, and now that there is only one variable in the equation, you have to subtract 20, since that is the opposite of adding.
2b+20=30
-20 -20
Then, you have to divide 2 from 10, since that is the opposite of multiplying.
<u>2b</u>=<u>10</u>
2 2
Conclusion- b=5
Answer:
Step-by-step explanation:
The answer is 8932. I'm pretty sure... Hope it helps
Answer:
The answer to your question is: sin Ф = -0.8745
Step-by-step explanation:
cos Ф = -0.485 π < Ф < 2π ; 180 < Ф < 360
Cosine is negative in the second and third quadrangle, but we need to find the quadrangle only in the third quadrangle.
cos Ф = adjacent side / hypotenuse
-0.485/ 1 = adjacent side / hypotenuse
adjacent side = -0.485
hypotenuse = 1
- Calculate the opposite side
c² = a² + b²
a² = c² - b²
a² = 1² - (-0.485)²
a² = 1 - 0.235
a² = 0.7648
Opposite side = a = - 0.8745, but is negative in the third quadrangle.
sin Ф = -0.8745 / 1
sin Ф = -0.8745
1620-60=1560 to share between them (since Catherine has 60 more). 1560/2=$780