Answer:
A. x=2, y = 7.
B. (2, 7).
Step-by-step explanation:
A. You can eliminate y by subtracting the equations:
y = 8x - 9
y = 4x - 1 Subtract:
0 = 4x - 8
4x = 8
x = 8/4 = 2.
Now substitute for x in the first equation:
y = 8(2) - 9 = 7.
Check in the second equation:
y = 4x - 1
7 = 4(2) - 1 = 7. Check is OK.
B. On the graph they will intersect at the point (2, 7).
They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.
Answer:
£200
Step-by-step explanation:
4 friends - 4 tickets
They need to BUY 3 tickets.
3 tickets will cost £1200
Divide the £1200 between the 4 friends which is £300.
They will then get the other 1 ticket for free and have 4 altogether!
Answer:
lo siento pero soy principiante
Step-by-step explanation:
To find Angle A we use cosine
cos ∅ = adjacent / hypotenuse
From the question
The adjacent is 17
The hypotenuse is 38
So we have
cos A = 17/38
A = cos-¹ 17/38
A = 63.4
<h3>A = 63° to the nearest degree</h3>
To find Angle C we use sine
sin ∅ = opposite / hypotenuse
From the question
The opposite is 17
The hypotenuse is 38
So we have
sin C = 17/38
C = sin-¹ 17/38
C = 26.57
<h3>C = 27° to the nearest degree</h3>
Hope this helps you
Answer:
You pay $38.25 after the discount is applied
Step-by-step explanation:
First take 15% of 45 by multiplying 45 by 0.15 (which is 15% as a decimal)
0.15 * 45 = 6.75
Subtract 6.75 from $45 and then you get $38.25!
Hope this helps! Good luck on your courses!
