X=180-127=53°
y=180-53-90=37°
Answer: The amoun of the initial value was $1,289.
Step-by-step explanation:
1. To solve this problem you must apply the formula shown below:
Where:
- is the account balance ().
- is the principal.
- is the annual interest ().
- is the time in years ().
- =2.7182
2. You must substitute the values into the formula and then you must solve for , as following:
Answer:
X= 2/5 y=-2
Step-by-step explanation:
5x + 2y = -2
3x - 5y = 11.2
Using the elimination method
Multiply equation 1 by 3
Multiply equation 2 by 5
15x + 6y = -6
15x - 25y = 56
Subtrat 3 from 4
-31y= 62
Divide both sides by -31
y= -2
To arrive at x, substitute y= -2 in equation 1
5x + 2y = -2
5x + 2(-2)= -2
5x -4 = -2
Collect like terms
5x= -2+4
5x= 2
Divide both sides by 5
x= 2/5
I’m not sure on the answer choices but this is what I got when I did synthetic division.
Answer:
7*40=7 group of 4 ten
7 groups of 4 tens=28 tens
28 tens = 280 seats on the bus
Step-by-step explanation:
A school has 7 buses. Each bus has 40 seat
1 bus = 40 seat
To find the number of seats on 7 buses we multiply the number seat of each bus with total number of buses
7 buses = 40 * 7 = 280
40 can be written as 4 tens
7*40=7 group of 4 ten
7 groups of______tens= ________tens
7 group of 4 tens
we add 7 groups of 4 tens , 4 +4+4+4+4+4+4 = 28 tens
7 groups of___4___tens= ____28____tens
_____tens = _____ seats on the bus
28 tens = 28 * 10 = 280 seats on the bus