45 minutes before 12:15 is 11:30.
Here, we have,
given that,
what's 45 min before 12:15
To determine 45 minutes before 12:15,
we subtract 45 minutes from the given time.
i.e. we have to get the result of (12:15 - 45)
we have,
12:15 - 45 minutes = 11:30
Therefore, 45 minutes before 12:15 is 11:30.
Hence, 11:30 is 45 min before 12:15.
To learn more on subtraction click:
#SPJ2
What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit. (4 points)
2) Earl mows lawns one weekend. He earns $15 for each lawn that he mows. He spends $50 on gas and other supplies. What function equation represents Earl's profit from mowing x lawns?
A)f(x)=50x-15
B)f(x)=50x+15
C)f(x)=15x-50
D)f(x)=15+50
3) find the common geometric series.
-2,-4,-8,-16.....
Answer:
Step-by-step explanation:
1) Depreciation
The formula for the value V of an asset after depreciation by an annual percentage rate is
V = P(1 - r)ⁿ
where
P = present value
r = annual percentage rate
n = number of years
Data:
V = 40 000
r = 11 % = 0.11
n = 8 yr
Calculations:
(a) Function model
V= 40 000(1 - 0.11)ⁿ = 40 000(0.89)ⁿ
The function model is
(b) Future value
V = 40 000(0.89)ⁿ = 40 000 × 0.393 659 = $15 746
In eight years, the truck will be worth
2) Profit function
Income from 1 lawn = $15
Income from x lawns = 15x
Less gas and supplies = -50
Net income = 15x – 50
The function is .
3) Geometric series
(a) Calculate the common ratio
a₁ = -2
a₂ = -4
a₃ = -8
a₄ = =16
The ratios of consecutive pairs are
a₄/a₃ = -16/(-8) = 2
a₃/a₂ = -8/(-4) = 2
a₂/a₁ = -4/(-2) = 2
All adjacent pairs have the same common ratio r = 2.
(b) Write the formula for the series
The formula for the nth term of a geometric series is
aₙ = a₁rⁿ⁻¹
If a₁ = -2, the formula for the series is
aₙ = -2(2)ⁿ⁻¹ = -2ⁿ
The formula for the series is .
The expression is 3p − 10. It takes 20 minutes to shape and fire 10 pots.
The expression is 3(p + 10). It takes 60 minutes to shape and fire 10 pots.
The expression is 3p + 10. It takes 40 minutes to shape and fire 10 pots.
Answer:
50
Step-by-step explanation:
add them all up and divide by 5
Answer:
50
Step-by-step explanation:
divide them all
Answer:
Step-by-step explanation:
Let (x), (x+1), and (x+2) be the three consecutive integers.
Put the words into expressions
Sum of the 3rd and twice the 3rd: (x)+2(x+2)
93 more than the second integer: 93+(x+1)
Now you can set up the equation and solve:
(x)+2(x+2)=93+(x+1)
Distribute and combine like terms
x+2x+4=94+x
3x+4=94+x
2x=90
x=45
So the 3 consecutive integers are 45, 46, 47.
Plug back in to check.