Answer:
x = -1, y =7
Step-by-step explanation:
3x+y =4
2x+y=5
Multiply the second equation by -1 and add to the first
3x+y =4
-2x-y=-5
-----------------
x = -1
Now find y
3x+y = 4
3(-1) +y = 4
-3+y = 4
Add 3 to each side
-3+3 +y = 4+3
y =7
15 = 1515% = 0.1533% = 0.330.3 = 0.30.17 = 0.1715 > 33% > 0.3 > 0.17 > 0.15I don't know if you typed the question because 15 means Zachary painted 15 houses, so I think the question says 15%, which is 0.15.
Answer:
5)42º
6)112º
7)112º
8)38º
Step-by-step explanation:
m<6 180-68=112
m<5 180=26+112+x 42=x
m<7 is congruent to m<6
m<8 180=30+112+x 38=x
Answer:
2x+y=
1 beacuse ...... i had the same question
Step-by-step explanation:
2.just subtract one from morning and half a hour is 30 minutes so it would be 2 hours left