Hello,
The answer is x= y-13 / 2 ( everything after the x= is a fraction)
How to solve;
Start by subtracting 13 from both sides of y=2x+13, we do this to get the x on 1 side
So now we have y-13=2x
Next divide both sides by 2, we do this to get x by it self.
y-13/2=x
Now we flip the problem and there you have it!
Edit: The x does not have a Pos or neg value, The only way to know what x is, is to solve for x.
4. Nicole sold 6 magazines for every 5 magazines Lauren sold
so ration magazines sold between Nicole to Lauren" 6:5
6 + 5 = 11
total 165 so 165/11 = 15
15 * 6 = 90
15 * 5 = 75
answer: Nicole sold 90
5.
a. 7:15 and 28:50
No, an equivalent ratio would be 7:15 and 28:60
6. new ratio of Honors to regular is 7:4.
If 77 in Honors then i would be 44 in regular
7* 11 = 77
4*11 = 44
7.
150 binders total
48 are red
150 - 48 = 102 are not red
ratio of red to not red
48:102 = 8:17
ratio not red to total
102:150 = 17:25
8.
6 girls in swimming club, 5 girls in art club, so ratio= 6:5
If 75 girls in art club, how many in swim club?
75/5 = 15
so 6*15 = 90
answer: there will be 90 girls in swim club
a. ratio blue to green chairs 7:8, if 252 blue, how many green
252/7 = 36
so 36 * 8 = 288 green chairs
answer: if 252 blue, will be 288 green chairs
Answer:
-4x^2, -3x, -5
Step-by-step explanation:
-4x^2 + 2x - 5 (1 + x)
-4x^2 + 2x - 5 + 5x
-4x^2 - 3x - 5
Fraid not. This time, you did it left.
The tool to use is "Vertical" angles are equal. (They don't add up to 180 degrees.)
3y + 120 = 5y + 100
(you should fill in the missing steps)
y = 10°
The upper/lower pair of vertical angles are both 150°.
.
2x = 6x - 60
(you should fill in the missing steps)
x = 15°
The left/right pair of vertical angles are both 30°.
It's any two angles NEXT TO each other that add up to 180°.
Notice here that (150° + 30°) = 180° .