Answer:
The number of children are 4 out of which 3 are girls
Step-by-step explanation:
Data provided in the question:
P(Two randomly selected children are girls) = 
now,
let the number of children be 'n'
the number of girls be 'x'
thus,
P(Two randomly selected children are girls) = 
=
also,
= 
thus,
=
or
=
or
2x(x-1) = n(n-1)
now
for x = 3 and n = 4
i.e
2(3)(3-1) = 4(4-1)
12 = 12
hence, the relation is justified
therefore,
The number of children are 4 out of which 3 are girls
So let's say quarters = x and dimes = y. You'd then put x + y = 77 (for a total of 77 coins). And your second equation would be .25x + .10y = 12.50 (.25 for the total value a quarter holds and .10 for a total value a dime holds). Then you'd do matrices on a calculator.
Answer:option c is the correct answer.
Step-by-step explanation:
A toaster oven costing $130 offers an extended warranty for 25% of the purchase price. This means that the money value of the warranty is
25/100 × 130 = 0.25 × 130 = $32.5
If the local repair shop will fix a toaster oven for $8, then the number of times that the toaster oven will break in order for the warranty to pay for itself is
32.5/8 = 4.0625
Therefore, it is 4 times
The 15% from the corn added to the 12% of the beans is 27%
find 27% of 360 by doing 360*.27
the answer is 97.2
round to 97
The first thing you should know is that distance is defined as the product of speed over time.
We have then:
d = v * t
Then, we know that:
v = 3 m / s
therefore, the slope of the line is:
3m / s
For t = 45 seconds we have:
d = v * t
d = (3) * (45).
d = 135 m
The point is:
(45, 135)
answer:
The slope of the line representing this relationship is:
3m / s
A point on this line that corresponds to the distance Luke swam in 45
seconds is:
(45, 135)
