Nora's speed (5*8)m²/2h= 20 m²/h.
Zack's speed (4*9)m²/3h= 12 m²/h
Together for 1 h they paint (20+12) m²/h=32m²/h
Given area (10*12)m²=120 m²
120m² *1h/32m² = 3.75 h (3h 45 min) to paint 10m*12m together.
PEMDAS
A. 4*4-4-4=16-4-4=12-4=8 true
B. 4*4*4-4=16*4-4=64-4=60, not 8 false
C. 4*4+4-4=16+0=16, not 8, incorect
D. 4(4+4)-4=4(8)-4=32-4=28, not 8 incorrect
A
Answer:
700 calories
Step-by-step explanation:
Answer:x=9
Step-by-step explanation:
6x+25=79
-25 -25
6x=54
/6 /6
x=9
9514 1404 393
Answer:
P(5) = 26
P(-5) = 6
Step-by-step explanation:
The remainder statement tells us ...
P(x) = Q(x)·(x +5) +6
Evaluating this for x=5, we get ...
P(5) = Q(5)(5+5) +6
P(5) = (2)(10) +6
P(5) = 26
And for x = -5, we have ...
P(-5) = Q(-5)(-5 +5) +6
P(-5) = 0 +6
P(-5) = 6
