Answer:
Step-by-step explanation:
add 8 to both side
so it is -1/4n>28
so we know that the denominator of 28 is 1
so multiply -1 by 1 and 4n by 28
It will look like this:
-1>112n
then divide both side by 112
the answer is n<-1/112 or 0.0089285
<h2> <u><em>
answer: </em></u>21 is 70% of 30
</h2>
<h2><u><em>
Working out percentages
</em></u></h2><h2><u><em>
We have, 70% × x = 21
or, 70100 × x = 21
</em></u></h2><h2><u><em>
Multiplying both sides by 100 and dividing both sides by 70,
</em></u></h2><h2><u><em>
we have x = 21 × 100
70
x = 30
</em></u></h2><h2><u><em>
If you are using a calculator, simply enter 21×100÷70, which will give you the answer.</em></u></h2>
X:{a, b, c}, because the numbers(or letters in this problem) cannot repeat.
Answer:
D
Step-by-step explanation:
There can be infinite solutions
Answer:
1st one: (x-2)(x+10)
2nd one: (x-7)(x-3)
Step-by-step explanation:
