Since complementary angles add up to 90 degrees, we simple take

and simplify it to

°
Answer:
x=1
Step-by-step explanation:
<em>First we have to isolate y</em>
Subtract 3x from both sides:
y=-3x+9
y=-4x+10
<u>Multiply the bottom by -1:</u>
y=-3x+9
-y=4x-10
<u>Combine the equations:</u>
x-1=0
<u>Add 1 to both sides:</u>
<em><u>x=1</u></em>
I hope this helps u pls give a brainliest and a thx ;)
leave a comment if i am wrong
there are 100 students because if you add them all together you get 100.
Answer:
12
Step-by-step explanation:
The general formula for this is
Formula
1/t1 + 1/t2 = 1/t_tot
givens
t1 = 6 hours
t2 = x
t_tot = 4 hours
Solution
1/6 + 1/x = 1/4 Subtract 1/6 from both sides.
1/6-1/6 + 1/x = 1/4 - 1/6 Change to 12 as your common denominator
1/x = 3/12 - 2/12 subtract
1/x = 1/12 Cross multiply
x = 12
Tom would need 12 hours to do the job alone.
Answer: The answers are: 3, 4, point R to point Q, depression from point Q to point R
Step-by-step explanation: