Answer: 500x + 700 > 120000
Step-by-step explanation:
Let x represent the number of castles he must conquer in order to break the record.
The site awards him 700 points for joining the game and another 500 points for every castle he conquers. This means that if he conquers x castles, the total number of points that he would have is
500x + 700
Greg needs to score more than 120,000 points to beat an online gaming site record. Therefore, the inequality that Greg could use to calculate the number of castles he must conquer in order to break the record is
500x + 700 > 120000
Answer:
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
5
2
−
7
−
1
8
=
0
5x^{2}-7x-18=0
5x2−7x−18=0
=
5
a={\color{#c92786}{5}}
a=5
=
−
7
b={\color{#e8710a}{-7}}
b=−7
=
−
1
8
c={\color{#129eaf}{-18}}
c=−18
=
−
(
−
7
)
±
(
−
7
)
2
−
4
⋅
5
(
−
1
8
)
Step-by-step explanation:
2 is the answer common multiple of 8and 10
Answer: second option.
Step-by-step explanation:
You need to descompose the radicand 8 and the radicand 50 into their prime factors:
Then you can rewrite the expression:
Since:
You can simplify the expression:
As the indices and the radicands are the same, you can make the addition:
Answer:
30 kilograms, I suppose. If there are 5 packages that each weight 6 kilograms, then that's 5 6 kilograms, which may equal 30 in all.