Answer:
Priyah = 15
Amirah = 19
Shirley = 13
Step-by-step explanation:
Let A represents Amirah, P Priyah and S, Shirley.
So, we have:
--- 4 years older
--- 2 years younger

Required
Find their ages
Substitute 4 + P for A and P - 2 for S in 


Collect Like Terms


Divide both sides by 3


Substitute 15 for P in
and 




Answer:
2
Step-by-step explanation:
2 can go into 12,2, and 84
The formula is 180(n-2)= 1140 then you divide 1140 by 180 to get 8 so then it would like like n-2=8 add the 2 over and n (being the number of sides)= 10 so your answer will be 10
Answer:
12,922
Step-by-step explanation:
estimate = 16,092 * 803/1,000 = 12,922
Here, You need to substitute the value of x, and y, in the equation then check if L.H.S is equal to R.H.S or not. If they are equal then, ordered pair was correct, otherwise they are not applicable.
75) Here, oly option D can fit i the equation, we can check:
3(-5) -2(-1) = -15+2 = -13 = R.H.S
So, the pairs are valid.
76) Here, only option D is your answer,
4(2) - 4 = 8 - 4 = R.H.S
Do the same thing in every equation!
Hope this helps!