side one is 5 side two is 10 and the third side is 13. 28 is not divisible by three so if one side i 5 ft longer and another side is 8 ft longer then you add them 5+8=13 then subtract 13 from the perimeter 28-13=15 then divide 15 by 3 and get 5 5 5. add 5 (5+5) (5+8).
7×10^7 = 70000000 (10^7 = 10000000)
Answer:
B: 1620cm2
Step-by-step explanation:
16×15×2+30×20
Answer:
n = 6
Step-by-step explanation:
17n + 4n - 4 =122
combine like terms 17n & 4n
21n - 4 = 122
21n - 4 + 4 = 122 + 4
21n = 126
21n / 21 = 126 / 21
n = 6
Answer:
D
Step-by-step explanation:
All real numbers are solution
Step 1: Simplify both sides of the inequality.
8x−7<8x−3
Step 2: Subtract 8x from both sides.
8x−7−8x<8x−3−8x
−7<−3
Step 3: Add 7 to both sides.
−7+7<−3+7
0<4
hope this help:)
