Answer:
Y=60
Step-by-step explanation:
S+Y=90
S=(2*Y)-90
Y+2Y-90=90
3Y=180
Y=60
Plug back into S+Y=90
S+60=90
S=30
Jessica tipped the driver about $4.75 or $4.756
Answer: 55-3m
Step-by-step explanation:
Given: Sarah received $55 dollar sign,for her birthday.
Therefore, the total money she had=$55
Since she used some of that money to buy 3 shirts priced at m dollars each.
Then the total amount she spent =3 times m=3m
Now, the amount of money she had left = 55-3m (in dollars)
Hence the required expression is 55-3m
Step-by-step explanation:
d = √(x2-x1)²+(y2-y1)²
d = √(-3-(-3))²+(-7-(-5))²
d = √ 0+(-2)²
d = √4
d = 2 units
67° all three angles should equal 180°