Hello :
<span>4x-5y=13...(1)
x+5y=-3...(2)
(1)+(2) : 5x = 10
x=2
subsct in (2) : 2+5y = -3
5y =-5
y = -1
</span>
Answer:
Step-by-step explanation:
3(10+n) = 25
30 +3n =25
30-30 and 25-30=
3n=-5
3/3 and 5/-3
Answer:$210
Step-by-step explanation: 7% of $1000 = $70 x 3yrs =$210
So you have two of those--when you add those together, you get "seven and eight-tenths," or 7.8 The 2 shorter sides are what's left to still measure. If the total perimeter is 10.4, you get the shorter sides by: 10.4 - 7.8 = 2.6, but REMEMBER, the 2.6 is BOTH shorter sides added together, so each ONE of them is 1.3 SO... your hallway/rectangle is 3.9 meters on each long side, and 1.3 meters on each short side. i hope this helps you
Answer:
Espero te sirva
Step-by-step explanation:
Suerte ******'**
