Answer:
Therefore,
Step-by-step explanation:
Given:
Addition in Column form is as follow
m² + 2mn + n² + 0m + 5
+ 2m² + 0mn - 3n² + 0m - 2
+ 0m² - 3mn + 2n² + m - 3
<u> </u>
3m² - mn + 0n² + m+ 0
<u> </u>
Therefore,
After 3 years he will have $13310
Hope this helps
Step-by-step explanation:
Take the number as x
12x-40=7x+25
collect like terms
12x-7x=25+40
5x=65(divide both sides by 5)
x=13
Therefore number is 13
Answer:
yes
Step-by-step explanation:
Answer:
114
Step-by-step explanation:
Ratio of red marbles to black marbles is 19:1. (Data from 3rd sentence)
19+1= 20
20 units= 120 (Data from 1st sentence)
1 unit= 120/20= 6
19 units= 120-6= 114 (Values solved in working above)
Ans: There are 114 red marbles.
i hope i cleared your doubt