Answer:
10 and 14
Step-by-step explanation:
Let the first number be x and the second number be y, then
x + 18 = 2y → (1)
y + 16 = 3x → (2)
Rearrange (1) expressing x in terms of y by subtracting 18 from both sides
x = 2y - 18 → (3)
Substitute x = 2y - 18 into (2)
y + 16 = 3(2y - 18) ← distribute
y + 16 = 6y - 54 ( subtract 6y from both sides )
- 5y + 16 = - 54 ( subtract 16 from both sides )
- 5y = - 70 ( divide both sides by - 5 )
y = 14
Substitute y = 14 into (3) for corresponding value of x
x = (2 × 14) - 18 = 28 - 18 = 10
The 2 numbers are 10 and 14
Answer:
C) 500.83
Step-by-step explanation:
Surface area for a cylinder formula:
SA = 2πrh + 2πr²
Given:
d = 11
r = d/2 = 11/2 = 5.5
h = 9
Work:
SA = 2πrh + 2πr²
SA = 2(3.14)(5.5)(9) + 2(3.14)(5.5)²
SA = 310.86 + 2(3.14)(30.25)
SA = 310.86 + 189.97
SA = 500.83
Kathy=k
John=k+6
''Together their ages equal four times Kathys age.''
→k+6+k=4k ; 2k+6=4k ; 2k=6 ;k=3
Kathy=3
John=3+6=9
Answer:
Step-by-step explanation:
x^2 - 8x + 16 = (x - 4)^2
the first one
In 50 min, Taray reads = 40 Pages
In 1 min, it is = 40/50 pages
Now, in 80 min, it would be: 40/50 * 80 = 4/5 * 80 = 320/5 = 64
In short, Your Answer would be 64 Pages
Hope this helps!