Find multiples of 30 and 40:
30: 30, 60, 90, 120, 150
40: 40, 80, 120, 160
The least common multiple is 120, so every 120 minutes they willl both ring.
1 hour = 60 minutes:
120/60 = 2 hours.
The bells ring together every 2 hours.
8 + 2 = 10 am
10 + = 12pm
12 + 2 = 2 pm
The bells will ring together at am, 12 pm and 2 pm.
Answer:
a
Step-by-step explanation:
Answer:
45.367 cm
Step-by-step explanation:
Approximating to a more number of decimal places gives a better estimation of the exact value.
For 45.367 cm, we approximated to three decimal places or five significant figures.
For 43.43 cm, the approximation is done to four decimal places.
Therefore the measurement 45.367cm is more precise because it has a relatively smaller error.
Answer:
7,884
Step-by-step explanation:
Step-by-step explanation:
f(x)=4x+7
y = 4x+7
4x = y-7
x = (y-7) /4
the correct answers are:
=> f`¹(x) = (x-7) /4 (a)
=> x - 7 = 4y (e)
=> (x-7) /4 = y (f)
=> x = 4y +7 (g)
