So megan is four years younger than her aunt
m+4=a
or
m=a-4
the sum of their ages is at least 40
m+a<u>></u>40
subsitute a-4 for m
a-4+a<u /><u>></u>40
combine like terms
2a-4<u>></u>40
the answer is the third from the top
Answer:
1/2n - 4 = 17
add four to both sides
1/2n = 21
n = 42
Step-by-step explanation:
3.0485e+18. That is the answer
Answer:
x = 3
Step-by-step explanation:
The traingels are similar so we can conpare sides.
3 is to 18 as 2 is to 4x or
3/18 = 2/4x
1/6 = 1/2x
6 = 2x
3 = x
5x - 5 = x + 15
add 5 to both sides
5x = x + 20
subtract x from both sides
4x = 20
divide both sides by 4
x = 5