Answer:
7a + 14
just multiply 7 by both a and 2
Answer:
747
Step-by-step explanation:
let the 2 numbers be x and y with x > y, then
x - y = 275 ( the difference of the 2 numbers ) and
x - 236 = 275 ( the smaller number y = 236 )
Add 236 to both sides
x = 511
Thus x = 511 and y = 236, thus
x + y = 511 + 236 = 747
721*8= 5768.................
Answer:
C). 0.39 grams
Step-by-step explanation:
First find how many half-lifes are in 3 hours:
3 hours ÷ 20 minutes = 9 half-lifes
Find the total left:
0.5^9*200 ≈ 0.39
Answer: Yes.
Step-by-step explanation: If a number ends in 0, 2, 4, 6, or 8, the number even number.