Answer:
I don´t know fully but you add by ones on top and add by threes on the bottom
Step-by-step explanation:
162/60 = 2.7 heartbeats per second
Answer:
6, 8
7, 9
1, 4
they are congruent (same angle measure)
Answer:
WHEN SIMPLIFIED THE ANSWER WILL BE:
Step-by-step explanation:
(X)/(2(X+4)
Elimination:
7x - 3y = 20
5x + 3y = 16
(add)
12x = 36
÷ 12
x = 3
(5 × 3) + 3y = 16
15 + 3y = 16
- 15
3y = 1
÷ 3
y = 1/3
Substitution:
5x + 3y = 16
- 3y
5x = 16 - 3y
÷ 5
x = 3.2 - 0.6y
5(3.2 - 0.6y) + 3y = 16
16 - 3y + 3y = 16
16 = 16
- 16
6y = 0
÷ 6
y = 0
Sorry the substitution messed up for some reason, I'll fix it after I've answered the other question
