Answer:
X = 45
Step-by-step explanation:
90 + X + A = 180 (angles of a triangle sum to 180)
90 + X + 45 = 180
X = 45
<span>A) 5x + 7y = 3
B) 2x + 3y = 1
Multiplying Equation B by -2.5
</span><span>B) -5x -7.5y = -2.5 Then adding this to Equation A)
A) 5x + 7y = 3</span>
-.5y = .5
y = -1
Since
<span>2x + 3y = 1 then
2x -3 = 1
then x = 2
</span>
I think it’s the one in the top right? cuz the negative would cancel out the 3x then u would have the 7x • 7x aka 7x to the second power
Answer:6/8 pounds
Step-by-step explanation:
2 1/4 - 1 1/2
- 2 times 4 plus 1 = 9/4
- 1 times 2 plus 1 = 3/2
9/4 - 3/2
-to subtract your fraction, you need to have the same denominator in each side
- 4 times 2 = 8 (this is your denominator)
- 4 times 3 = 12 (your right numerator)
- 2 times 9 = 18 (your left numerator)
18/8 - 12/8 = 6/8
