-4x+y= -9 can be turned into
y= -9 + 4x
5x+2y=3 (plug y in)
5x+2(-9+4x)=3
5x-18+8x=3
5x+8x=3+18
13x=21
divide 13 on both sides
x=1.6
66 is the measure of the smaller angle.
Answer:
x = 59 square meters
Step-by-step explanation:
To find x, you must first eradicate the 3 so you can divide. Subtract 3 from both 3 and 121. This should leave you with 118. Then, divide 118 by 2. This will leave you with 59 square meters.
1. 2x + 3 = 121
2. 2x + 3 - 3 = 121 - 3
3. 2x = 118
4. 2x/2 = 118/2
5. x = 59 units
If a car travels 135 miles on 6 gallons of gasoline, then one gallon of gasoline car travel would be
135/6
=22.5
The car can travel
22.5*10
=225 miles on 10 gallons of gasoline
^o^