Answer:
option B, and D
Step-by-step explanation:
coz when u multiply 2/3 by 2/2, u wud get 4/6,
and when u divide 8/12 by 2/2, u wud agn get 4/6
x is the number of adults and y is the number of children.
x + y = 12
<span>14x + 10y = 140
lets multiply the first equation by -10 and then add it to the second equation:
-10x - 10y = -120
</span>14x + 10y = <span>140
</span>-----------------------
4x + 0 = 20
x = 20/4
x = 5
then substitute in the original equation:
x + y = <span>12
</span>5 + y = <span>12
</span>y = 12 - 5
y = 7
therefore there were 5 adults and 7 children
Answer: -30
Step-by-step explanation: Simplify the expression. ( Calculator)
Step-by-step explanation:
Pounds 6000 8000. 10000. 14000. 18000
Tons 3. 4. 5. 7. 9
