Answer:
1 × (3x + 2y = 12)
2 × (4x - y = 5)
3x + 2y = 12
+ (8x - 2y = 10)
= 11x = 22
divide both sides by the coefficient of 'x' (11)
Therefore x = 2
put (x = 2) in equation 1
3(2) + 2y = 12
6 + 2y = 12
2y = 12 - 6
2y = 6
divide both sides by the coefficient of 'y'(2)
Therefore y = 3
∠2 = ∠3 | Given
∠1 + ∠2 = 180 | Supplementary Angles Postule (If two angles are adjacent and ∠3 + ∠4 = 180| linear, they're supplementary)
∠1 + ∠2 = ∠3 + ∠4 | Transitive property
∠1 + ∠3 = ∠3 + ∠4 | Substitution property
∠1 = ∠4 | Subtraction Property
∠2 = ∠3 | Supplementary Congruent Theorem
Make them all decimals or all fractions with the same denominator and it will be easy to tell by inspection which is least.
43/50= .86
.91=.91
7/8= .875
84%=.84
84%. 43/50. 7/8. .91
I'M soo not sure on this one. But if I did the math correctly your answer would be C. 64
Hoped I help!
Also sorry if its wrong.
Answer:
20
Step-by-step explanation:
H+S=50
2H+4S=140
4H+4S=200
4H+4S=200-
2H+ 4S =140
2H=60
H=30
50-30=20
