In these equations, the value of y is 6/5 times the value of X
Answer:
C. 7
Step-by-step explanation:
First you have to find the unit rate of this equation
The unit rate is 20 students for every 1 teacher because 40 divided by 2 is 20
so if you do 140 divided by 20 your answer is 7
there are 7 teachers
Answer:
cos 37=x/b (second one)
sin 37= a/b (third one)
tan 37=a/x (sixth one)
Step-by-step explanation:
Cos is defined by the adjacent side over the hypotenuse. Cos 37 would be x/b. Clearly, that is option 2. Sin is defined by opposite over hypotenuse. Sin 37 would be a/b. That is the 3rd option. Tan is defined by opposite over adjacent. Tan 37 would be a/x or the 6th option.
Answer: 1 
Please read the whole thing and make sure you understand. Trust me, only copying and not learning will only make math harder.
Step-by-step explanation:
2x + 3 = 9x - 5
Add 5 to both sides, cancelling off the 5 on the right
2x + 3 + 5 = 9x
2x + 8 = 9x
Subtract 2x from both sides, cancelling off the 2x on the left
8 = 9x - 2x
8 = 7x
Divide each side by 7, cancelling of the 7 from the x on the right
8 / 7 = x
1.4285714286... = 7
1
A is the answer to the equation
