Answer:
C. 10
Step-by-step explanation:
Let x and y represent push-ups and pull-ups, respectively.
x + y = 24 . . . . . . combined total of push/pull-ups
2x +4y = 68 . . . . time required for the exercise
We can divide the second equation by 2 and subtract the first:
(1/2)(2x +4y) -(x +y) = (1/2)(68) -(24)
x +2y -x -y = 34 -24 . . . . . eliminate parentheses
y = 10 . . . . . . . . . simplify
Malia did 10 pull-ups.
__
She did 14 push-ups.
Answer:
The probability is of 0.1404 or 14.04%.
Step-by-step explanation:
The Poisson Distribution formula is given by:
Where:
,
is Euler's constant,
is the number of successes of which we're trying to calculate the probability of occurring.
In this exercise we have that:
.
Replacing in the formula we get:
Therefore the probability of three customers shopping at the store in an hour is of 0.1404 or 14.04%.
Answer:
y = 3x + 4
Step-by-step explanation:
y = mx + c where m is the slope and c is the y intercept.
Slope =
Slope (taken from points (0, 4) and (1, 7)) =
= 3
y-intercept = 4
Equation: y = 3x + 4
Answer:
b = 3/4
Step-by-step explanation:
The area of a triangle is given by
A = 1/2 bh
3/ 40 = 1/2 b ( 1/5)
Multiply
3/40 = 1/10 b
Multiply each side by 10
10 *3/40 = 10* 1/10 b
3/4 = b