I think maybe it's A. sorry if that's wrong
Answer:
60 nickels and 25 pennies
Step-by-step explanation:
Answer:
The answer is below
Step-by-step explanation:
The equation of a linear function is given as:
y = mx + b;
where y, x are variables, m is the rate of change and b is the initial value of variable y.
A) Since there is B bacteria in the Petri dish at 12:00 midnight and the number of bacteria increases after midnight by 25 every hour. Let h represent the time in hours and T represent the total number of bacteria, therefore the equation is:
T = 25h + B
B) Given that B = 5, h = 6, hence:
T = 25(6) + 5 = 150 + 5 = 155 bacteria
C) The equation of the graph is:
T = 25h + 5
The graph was plotted using geogebra online graphing.
Answer:
1= -4a+7b
2=(7x-5)/3
Step-by-step explanation:
1,
a+3b-(5a-4b)
expand bracket 1st according to BIDMAS
a+3b-5a+4b
collect like terms
a-5a+3b+4b
ans=-4a+7b
2,
X/3+2x-5/3
solve for the 1st two
X/3 +2x
LCM =3 so,
(x+6x)/3=7x/3
use this and solve the last part
(7x/3)-(5/3)
LCM=3
ans=(7x-5)/3