Answer for question 2:
x= -5
Step-by-step explanation:
0= 6x +30
-6x= 30
x= 30/-6
x= -5
Answer:
2 and 3.
Step-by-step explanation:
Four to the second power is 16.
Four to the third power is 64.
30 lies between 16 and 64, thus the exponent must lie between 2 and 3.
Answer:
y>5-x
Step-by-step explanation:
To solve this problem we need start by grouping terms in the same side of inequality.
Lets begging by grouping 'y' terms on the left side of inequality sign, to do this, subtract 3y to both sides:
2x+5y-3y>3y-3y+10
2x+2y>10
Now lets subtract 2x to both sides of inequality.
2x-2x+2y>10-2x
2y>10-2x
Now isolate variable x by dividing the inequaiity by 2.
y>5-x
That is the solution
In integers subtraction and addition are almost same ....
Addition :in addition if both numbers have different signs ..i.e - and + then we would find the difference and put the greater number sign ...For eg:(-6) + 12 =6 ...
<span> if both are same ..i.e if both are either positive(+) or negative(-) then you add(or find the sum) and put the common sign ... For eg :+5+10 = +15 and (-5) + (-10) = (-5)]
Subtraction: in subtraction what you do is changing the sign of the second number ...and then depending upon the both signs follow the rules of addition ...
for eg: 6 - 4 ..it becomes 6 + (-4) ...so as they have different signs we can subtract them and put the greater number sign ...
i.e, 6 + (-4) = 2 ...
To find the sum follow these rules ......mentioned above ....
u can ask if you have any doubt ....
Hope it helps !!!
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A 75% increase followed by 33.33% goes under less than the original
A 30$ increase followed by a 30$ decrease goes under same as the original
A 55% decrease followed by 25% increase goes under greater than the original
100% increase followed by a 50% decrease goes under less than the original
20% decrease followed by a 40% increase goes under greater than the original
