Answer:
y=4
Step-by-step explanation:
84=30y-9y, first you collect like terms.
84=21y, swap the sides
21y=84, devide both sides and you get y =4
Tenth: 243.9
hundreth: 243.88
ten: 240
hundred:200
hope this helps
Answer:
"Commutative property of addition and of multiplication"
Step-by-step explanation:
This is the "commutative property" of addition and of multiplication. That as its name indicates tells us for additions, that if we add A + B, or B + A, we should get the same result. Similarly, the "commutative property" of multiplication tells us that if we perform the product A * B we should get the same answer as if we perform the product: B * A.
You have to multiply the number of people times the number of cookies they are each supposed to get
So, 28 x 3 = 84 cookies
137,638
+52,091
-------
189,729 ⇨ 189,730
