Answer:
a = 7 ($1)
b = 8 ($5)
Step-by-step explanation:
a + b = 15 | (-)
1a + 5b = 47
- a - b = - 15
a + 5b = 47
------------------ +
-a + a - b + 5b = - 15 + 47
4b = 32
b = 32 : 4
b = 8
a = 15 - 8 = 7
Answer:
2k-3
Step-by-step explanation:
the square of k is k times k so 2k (two times k) and less than three means minus three.
Answer:
We need to put $801.88 amount in the bank.
Step-by-step explanation:
given that
t=3 yr
Need amount $850 after 3 yr so P= $850
Interest rate=2%
We know that for simple interest

Where r is the Interest rate,t is the time,A is the present amount and P is principle amount after t time.
Here given that P= $850
So now putting the values

So A=$801.88
We need to put $801.88 amount in the bank.
The answer for this equation is x=3
M∠B = x
m∠A = 4x
x + 4x = 180
5x = 180
x = 180/5
x = 36
m∠B = x = 36°
m∠A = 4x = 4 * 36 = 144°
Answer is <span>b. 144, 36</span>