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Sindrei [870]
3 years ago
15

PLEASE HELP I WILL GIVE BRAINLIST PLEASE

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0

Answer:

C)

Step-by-step explanation:

The number of playes can only be 8, 9, 10 ,11 , 12

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Quick! Andrew has to play 15 games in a chess tournament. At some point during the tournament he has won half of the games he ha
nikklg [1K]

x - the number of the games he played

\dfrac{x}{2} - the number of the games he won

\dfrac{x}{3} - the number of the games he lost

x=\dfrac{x}{2}+\dfrac{x}{3}+2\Big|\cdot6\\6x=3x+2x+12\\x=12

15-12=3

<u>so, he has still 3 games to play</u>

3 0
3 years ago
The original price of a new book is $140.00. If the book is marked down
11Alexandr11 [23.1K]

Answer:

112.00

Step-by-step explanation:

140.00=100%

? =80%

80×140÷100=112.00

=$112.00

8 0
3 years ago
you make a salary of $700 dollars per week. you have an insurance deduction of $65 per week as 12% withheld for taxes after your
mrs_skeptik [129]
700-65 = 635 for deduction insurance
635*12%= 76.2 pay for taxes per week
real salary per week= 635-76.2 = $558.8
A year has 52 weeks, but you have 3 weeks of unpaid so you have 49 week paying and 3 weeks no.
700*3= 2100 for 3 weeks unpaid
558.8*49= $27381.2 the total earned the rest of the year 
Total in a year = 27381.2+2100= $29481.2
5 0
3 years ago
Given ​ f(x)=x2+14x+40 ​. <br> Enter the quadratic function in vertex form in the box. <br> f(x)=
sukhopar [10]
We know that
the quadratic function in vertex form is--------------> y=a*(x-h)²+k

we have
f(x)=x²<span>+14x+40
y=</span>x²+14x+40

We can convert to vertex form by completing the square on the right hand side
y-40=x²+14x
y-40-49=x²+14x-49------> subtract 49 on BOTH sides to preserve the equality
y-40=(x²+14x+49)-49
y=(x²+14x+49)-49+40---------> y=(x+7)²-9

the answer is
the quadratic function in vertex form-----------> y=(x+7)²-9
<span>the vertex is the point (-7,-9)

</span>
6 0
4 years ago
Need Help ASAP!!!! Multiple Choice...
yan [13]
Here it's I ready let me tell u a trick guess one if it's wrong logout of the lesson and do it again we used to get 100 on all are lessons with that.
3 0
3 years ago
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