Answer:
I got it.
Step-by-step explanation:
-12a - (-15b) + (-3c)
Answer:
64 and 52 or 58 and 58
Step-by-step explanation:
All the angles have to add up to 180 and 2 angles need to match
Answer: negative square root of two over 2 and tan theta is -1
Step-by-step explanation:
Did it on edge and got it right
A would equal negative 60
X: earn per hour during the week
y: earn per hour during the weekend
13x + 14y = 250.90
15x + 8y = 204.70
Multiply the first equation by 4 and the second equation by 7
52x + 56y = 1003.6
105x + 56y = 1432.90
Subtract the first equation from the second:
53x = 429.30
x = 429.30/ 53
x = 8.10
Solve any of the equation for y:
15x + 8y = 204.70
y = [204.70 - 15(8.10)]/8 = 10.40
y - x = 10.40 -8.10 = 2.30
Answer: she earns $2.30 per hour more during the weekend than during the week.
