Answer:
2/5
Step-by-step explanation:
Reduced fraction: 25. So, 12/30 simplified to lowest terms is 2/5.
Hope this helps!
Answer:
22.5
Step-by-step explanation:
x= the number
Let's write the statement as an equation, and solve for x.
7x-90=3x
-90=-4x
22.5=x
Given two equations are :
- 2x = - y + 6.
- -4 x + 3y = 8 .
We may write them as ,
- 2x + y - 6 = 0 .................(i)
- 4x - 3y + 8 = 0 ...............(ii)
Multiplying equⁿ (i) by 2 :
⇒ 2(2x + y - 6 ) = 0.
⇒ 4x + 2y - 12 = 0 .....................(iii) .
<u>Subtra</u><u>ct</u><u> </u><u>equ</u><u>ⁿ</u><u> </u><u>(</u><u>ii</u><u>)</u><u> </u><u>from</u><u> </u><u>equⁿ</u><u> </u><u>(</u><u>iii</u><u>)</u><u> </u><u>:</u><u>-</u>
⇒ 4x + 2y - 12 = 0
ㅤ- 4x + 3y - 8 = 0 [ Sign changes ]
__________________
⇒ 5y - 20 = 0.ㅤㅤㅤㅤㅤ
⇒ 5y = 20.
⇒ y = 20/5.
⇒ y = 4
Put this value in (i) to obtain x .
⇒ 2x + y - 6 = 0.
⇒ 2x +4 - 6 = 0.
⇒ 2x - 2 = 0.
⇒2x = 2 .
⇒ x = 2/2.
⇒ x = 1 .
<u>Hence</u><u> </u><u>the</u><u> </u><u>value</u><u> of</u><u> x</u><u> is</u><u> </u><u>1</u><u> </u><u>&</u><u> </u><u>y</u><u> </u><u>is</u><u> </u><u>4</u><u>.</u>
The correct answer is A
70/75 × 100 = 93.33333%
100% – 93.33333% = 6.66667% (to 1dp it's 6.7%)