Answer:
The answers are below bolded just for you.
Step-by-step explanation:
1a) I would choose plan <u>C</u> if I wanted 5 hours of lessons.
1b) I would choose plan <u>B</u> if I wanted 17 hours of lessons.
1c) I would choose plan A if I wanted between <u>8</u> and <u>14</u> hours of lessons.
2a) Using y=mx+b , the slope formula, we get <u>y=2x+4</u> (In our case)
2b) The slope would be more steeper and the formula for it would now be <u>y=5x+4</u>. (I can't graph on Brainly)
2c) If the cost of renting shoes went up to 8 instead of 4, the y-intercept would now be 8 and the formula for it would now be <u>y=2x+8</u>. (I can't graph on Brainly)
. Multiplying the denominator by gives
Subtracting this from the numerator gives a remainder of
. Multiplying the denominator by gives
and subtracting this from the previous remainder gives a new remainder of
This last remainder is exactly the same as the denominator, so divides through it exactly and leaves us with 1.
What we showed here is that
and this last expression is the quotient.
To verify this solution, we can simply multiply this by the original denominator:
which matches the original numerator.
Answer:
The variance of these investment returns is 74
Step-by-step explanation:
Given:
Series = 10, 30, 15, 5, 20
To Find:
variance of a series = ?
Solution:
The variance of the series =
Now
=
= 36 + 196 +121 + 1+ 16
= 370
Now
= 74
Answer:
69 boi
Step-by-step explanation:
35
12 + 25y = 795
12(y + 20) + 25y = 795
12y + 240 + 25y = 795
37y = 795 - 240
37y= 555
y=15
Substitute y= 15 into
x=y + 20
x= 15 + 20
x= 35
T-shirt = 35
Sweatshirt = 15
They brought 35 t shirts