Answer: Age of Lin is 12
Solution:
Let X= age of Maya
(X/2)+4= age of Adrian
((X/2)+4)-7= age of Lin
X+(X/2)+4+((X/2)+4-7)=61
X+.5X+4+.5X+4-7=61
2X+4+4-7=61
2x=61-8+7
2X=60
X=30 age of Maya
19= age of Adrian
Age of Lin is
=((X/2)+4)-7
=15+4-7
=12
To check if this is correct
<span>30+19+12=61</span>
No 5.75 is greater than 5.55
Answer:
the angle of 3 is 50
Step-by-step explanation:
What you would do is add 90 to 40 which would get you 130. Then you will subtract 130 from 180 which gets you 50 for angle 1. Since angle 1 is across from angle 3, angle 3 will also be 50.
one slice of pizza is $3.75
Step-by-step explanation:
first write out 2 simultaneous equations from thr given information.
fries=f and pizza=p
4p+2f=21
2p+3f=16.5
and solve from there through either the substitution method or elimination. hope this helps
Answer:
Step-by-step explanation:
Let be "x" the lenght in feet of rope that you can buy with 30 dollars.
According to the information provided in the exercise, you can buy a piece of rope of 2 feet with 20 cents.
Remember that
Knowing this, you can write the following proportion:
FInally, solving for "x", you get this result: