Hi Brainiac
y=2x-3
y= 2x+5
Ok we need to solve y=2x-3 for y
Now substitute 2x-3 for y in y=2x+5
y=2x+5
2x-3=2x+5
Add -2x
2x-3-2x=2x+5-2x
-3=5
Add 3
-3+3=5+3
0=8
No Solutions
I hope that's help:0
Answer:
Tip= $25
Step-by-step explanation:
<u>First, we need to round the bill to the nearest tenth.</u>
Bill= 47.84 = 50
<u>Now, we can calculate the tip using the following formula:</u>
Bill proportion= 50% = 0.5
Tip= Bill*tip proportion
Tip= 50*0.5
Tip= $25
On a $50 bill, the tip is $25. The total amount to pay is $75.
Answer:
Answer
Step-by-step explanation:
(a) B ⊄ A (b) C ⊂ A (c) B ⊄ C (d) ∅ ⊂ B (empty set is an element of any set)
(e) C ⊂ C (reflexitivity).
It helps if you have an example, like f(x) = 2x+3
What you typically do, is:
- draw xy axis, label them (ie., 1,2,3,4 along both axes)
- calculate the f(x) values for several x (e.g., -2, 0, 1, 3, doesn't matter).
- plot the calculated values as points. The calculated f(x) is your y value.
- sketch a smooth line through the points. It helps if you know in advance if the line is going to be straight or curved.
- The more points you calculate, the more accurate your graph will be
6x+7y=32 and 2x+5y=16
if you add the two equations you get the first answer and if you subtract the two equations you get the second answer
