Answer:
y= x-2
y×x= 2
yx
I guess it's like that not sure
Let one section be x ft long and the other one be 3x. Then 4x=28, and x=7.
The shorter section will have length 7.
Answer:
5 days
Step-by-step explanation:
We can use a ratio to solve
12 emails 60 emails
--------------- = --------------
1 day x days
Using cross products
12*x = 1 * 60
12x = 60
Divide each side by 12
12x/12 = 60/12
x =5
It will take him 5 days
(i)
12x+ 7 = 6x + 27
12x-6x = 27-7
6x = 20
x = 20/6 =10/3 = 3.33
(ii)
4x + 74 = 9x = +14
4x - 9x = 14 -74
-5x = -60
x = -60/ -5 = 12.
(iii)
12x -14 = 9x -1
12x-9x = -1 +14
3x = 13
x = 13/3
(iv) 3x + 35 = 13x -45
3x -13x = -45 - 35
- 10x = - 80
x = -80/-10= 8
(v)
6x -1 = 16x -121
6x -16x =-121+1
-10x = -120
x = -120/-10 = 12
(vii)
10 + 9x = 42 + x
9x - x = 42 -10
8x = 32
x = 32/8 =4
Answer:
Step-by-step explanation:
<u><em>The complete options are</em></u>
a) x - 2y = 30
b) 4x - 3y = 30
c) 3x - 4y = 30
d) 6x - 6y = 30
The given equation is
<u>Verify option d</u>
we have
Divide by 6 both sides
therefore
and are equivalent
