Solve <span>4x − 3y = 3 and 5x − 4y = 3
Step 1: Solve for x in 4x-3y=3:
4x-3y=3
4x-3y+3y=3+3y [Add 3y to both sides]
4x=3y+3
</span>
[Divide both sides by 4]
x=
Step 2: Substitute
<span> for x in 5x-4y=3
5x-4y=3
5(</span>
<span>)-4y=3
</span>
[Subtract
to both sides]
[Divide both sides by
]
<span>y = 3
Step 3: Substitute 3 for y in x = </span>
x = 3
Answer:
5.65%
Step-by-step explanation:
Principal=$600
Time=20 years
FV=600*3=$1800
n=1
r=?
r= n[(A/P)^1/nt - 1]
=1{(1800/600)^ 1/1*20 - 1}
={(3)^1/20-1}
=3^0.05-1
=1.0565-1
=0.0565
rate=0.0565*100
=5.65% to the nearest hundredth percent
Answer:
Decrease
Step-by-step explanation:
So, I encourage you to grab a calculator and see for yourself
Put in the function: 4/5 into a standard calculator. You will see that it will come out to .8
Put in the function: 3/5 into a standard calculator. You will see that it will come out to .6
.6 is less than .8, just as 3/5 is less than 4/5.
Another analogy that can be used is seeing the fraction as a real-life object.
Let's say that you make two pies. You cut the pie evenly into five slices. You set them on the table and leave them for whoever wants to eat them. You see that Pie 1 has two slices missing (3/5) and that Pie 2 has one slice missing. (4/5)
3 out of 5 slices are left of Pie 1.
4 out of 5 slices are left of Pie 2.
Pie 1 has less than Pie 2 does.
Hope this has helped!
Answer:
n = 0
Step-by-step explanation:
Multiply parenthesis by 3 and get:
1.) 18 + 9n = 5n + 18 + 3n
Then cancel the equal terms:
9n = 5n + 3n
Collect like terms:
9n = 8n
Move variable to the left:
9n - 8n = 0
n + 0
Plugin the value of 0 into x:
3 (6 + 3 x 0) = 18
5 x 0 + 3 x 0 + 18 = 18
*If the plugged in value have the same result than the answer is correct because 18 + 18.
