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AfilCa [17]
3 years ago
12

Larry has already read 60 pages out of a 400 page book. He wants to finish the book in the next 20 days. The equation 20x + 60 =

400 correctly models this scenario IF x represents...
Mathematics
2 answers:
chubhunter [2.5K]3 years ago
6 0
The ANSWER Represents DAYS
antiseptic1488 [7]3 years ago
4 0

Answer:

days

Step-by-step explanation:

You might be interested in
Which of the following is equivalent to 0.000001?
Sergio039 [100]
You didn’t post the options but that is also equal to 1.0 x 10^-6
7 0
2 years ago
In a sample of 77 children , the mean age as at which they first began to combine words was 16.51 months
astraxan [27]

Answer:

Mean age = 1271.27

Step-by-step explanation:

No of children = 77

The age at which children first began to combine words = 16.51 months

Mean age = No of children × age at which children first began to combine words

                = 77 × 16.51

                 = 1271.27

Mean age = 1271.27

7 0
3 years ago
Students in health class are tracking how much water they consume each day. Evelyn has two reusable water bottles: a small one a
Ludmilka [50]

Answer:

424 grams for the small one and 510 grams for the big one.

Step-by-step explanation:

Nice profile picture.

8 0
2 years ago
I need to find all real values of x from this inequality x^2>2x-2 and also this question x^2>2x+2. I need the answer fast
sergeinik [125]

x^2\gt2x-2

x^2-2x+2\gt0

You are essentially asking at this point where is the quadratic function greater than 0. To get the interval find the roots. Between the roots the function is guaranteed to be LESS THAN zero. Everywhere else the function is greater than 0.

x^2-2x+2=0

Use Vieta's rule to get the roots,

(x-1)(x-1)=0

Both roots are the same so no value is less than 0 which means all values except at the point of root are strictly greater, the point of root is at x_{1,2}=1 which means the set for which the quadratic function is greater than 0 is \mathbb{R}-\{1\} "all real numbers except 1".

To convert this into interval notation use all numbers up to 1 but not including and all numbers after 1 but not including,

(-\infty,1)\cup(1,\infty)

Hope this helps :)

7 0
3 years ago
What is the slope of the line whose equation is 2x - 4y = 10?
OLga [1]

2x - 4y = 10

4y = 2x - 10

y = 1/2 x - 5/2

Slope = 1/2

6 0
3 years ago
Read 2 more answers
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