Answer:
x = 13.444 ... (repeating decimal) or;
x = 13 4/9
Step-by-step explanation:
-0.65 + 0.45x = 5.4
First we will add 0.65 to each 'side' of the equation.
0.65 + (-0.65) + 0.45x = 0.65 + 5.4
0.65 + (-0.65) = 0
0.65 + 5.4 = 6.05
Input the numbers, and now the equation looks like this:
0 + 0.45x = 6.05
Remove the zero:
0.45x = 6.05
Divide each 'side' by 0.45.
0.45x ÷ 0.45 = 6.05 ÷ 0.45
0.45x ÷ 0.45 = 1x = x
6.05 ÷ 0.45 = 13.444 ... repeating decimal
Input the numbers, and now the equation looks like this:
x = 13.444 ... repeating decimal
We can also write this as:
x = 13 4/9 in fraction form
N = -5 sorry I only answered the second one
Answer:
x = 5
Step-by-step explanation:
(since the equations are equal to eachother, add similiar factors)
4x - 3 = 2x + 7
+3. -2x
2x = 10
<em>Simplify</em>
x = 5
Answer:
y=3x+5
Step-by-step explanation:
- start by putting 18x on the other side of the equation
- to do this you have to subtract, so it will be -18x now
2. now you have -6y=-18x-30
3. now you need to divide -6 by -18 and -30 on the other side to get y by itself
4. this will leave you with y=3x+5 because 6 divided by 18 is three and 30 divided by 6 is five.
I hope this helps!!
Answer:
155°
Step-by-step explanation:
We know that the sum of the sections must be 360°. So, by removing a section of 75° he leaves the paper circle with a section of 185°, then removes another 130° section, leaving the last section of 155°.
