Answer:y=2x+1
Step-by-step explanation:
y
−
y
1=
m(
x
−
x
1
)
.
Slope-intercept form:
y
=
2
x
+
1
Answer:
9. 5 Hours
Step-by-step explanation:
8:30 AM to 12:00 PM = 3.5 hours
12:00 PM to 6:00 PM = 6 hours
Total = 6 + 3.5 = 9.5 hours
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Mark Brainliest
The quantity of each concentrations of 3% and 9% needed to get the desired concentration is 54 milliliters and 27 milliliters respectively
<h3>Simultaneous equation</h3>
Let
- Quantity of 3% needed = x
- Quantity of 9% needed = y
x + y = 81
0.03x + 0.09y = 81 × 5%
0.03x + 0.09y = 4.05
x + y = 81
0.03x + 0.09y = 4.05
From (1)
x = 81 - y
0.03x + 0.09y = 4.05
0.03(81 - y) + 0.09y = 4.05
2.43 - 0.03y + 0.09y = 4.05
- 0.03y + 0.09y = 4.05 - 2.43
0.06y = 1.62
y = 1.62/0.06
y = 27
x = 81 - y
x = 81 - 27
x = 54
Simultaneous equation:
brainly.com/question/16863577
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You would distribute the -2 and the first b-2
-2xb= -2b
-2x-2= 2
So it would now be -2b - 2 (b-2)
Answer:
Step-by-step explanation:
The rate of change is 30 songs every week
Initial value 150
5x+30=y