Answer:
x = -3
y = 7
Step-by-step explanation:
y = -2x + 1
7 = -2x + 1
<u>-1 -1 </u>
6 = -2x
divide by -2
x = -3
Step-by-step explanation:
1 week = 7 days
given 7 days = 14 hours of practice
and let x be the number of hours spent on practicing and y the number of days.
from the above expression we can have the equation,
using the equation when y = 10,
Step-by-step explanation:
a. Obtuse Scalene Triangle. It has one angle that is greater than 90 degrees and have two equal sides so it's a obtuse scalene triangle.
b. A triangle interior add up to 180 degrees. We are given the upper angle which is 173. The other two angles must add to 180 but must be equal.
x=173 so
3.5 degrees.
Answer:
B, 8+12
Step-by-step explanation:
2 + 3 is 5, 4 × 5 = 20
Therefore the only option which equals 20 is B.