b 1+2i
c 3
d 1−2i
Answer:
D. 1-2i is your answer.
Step-by-step explanation:
What you're doing is adding them together.
4 + -3 + -7i + 5i = 1-2i
D. 1-2i is your answer.
and the number of dimes that Victoria has. Define the variables that you use to write
the system.
Answer:
0.05n+0.10d=1.90
n=d+2
Step-by-step explanation:
One nickel is worth $0.05, so n nickels are worth 0.05n. One dime is worth $0.10, so dd dimes are worth 0.10d.The total 0.05n+0.10d equals $1.90:
0.05n+0.10d=1.90
Since there are 2 more nickels than dimes, there are more nickels, so if we add 2 to the number of dimes, we will get the number of nickels, meaning nn equals d+2.d+2.
n=d+2
From the problem, we create a system of equations that represent the value and quantity of nickels and dimes Victoria has. The system is: 0.05N + 0.10D = 1.90 and N = D + 2, where N represents nickels and D represents dimes.
The problem is about finding the number of nickels and dimes Victoria has. To do this, we will use a system of equations. We'll define N as the number of nickels and D as the number of dimes.
The first equation is based on the total value: since a nickel is worth $0.05 and a dime is worth $0.10, Victoria's coins add up to $1.90 - hence 0.05N + 0.10D = 1.90
The second equation is based on the quantity of coins: Victoria has 2 more nickels than dimes - hence N = D + 2.
Therefore, the system of equations is:
#SPJ11
A.
24°
B.
69°
C.
111°
D.
159°
Answer:
c.111°
Step-by-step explanation:
Answer:
$31
Step-by-step explanation:
$6.50 = $6
$15.75 = $16
$2.25 = $2
$7.25 = $7
$6 + $16 + $2 + $7 = $31
Answer:
Walking on the sidewalk would talk longer
Step-by-step explanation:
You would have to walk beside the sidewalk, causing you to talk less steps to get to school.