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gogolik [260]
3 years ago
7

Tell me basic arithmetic topics

Mathematics
2 answers:
AlexFokin [52]3 years ago
8 0

Step-by-step explanation:

whole numbers, place values etc.

Maurinko [17]3 years ago
6 0
Addition, subtraction, multiplication, division, factoring, fractions etc
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I need to figure out what x is for my homework and I’m so confused teehee.
garik1379 [7]

Answer:

x = 9

Step-by-step explanation:

set a proportion: 8/12 = 6/x => 8x = 72 => x = 9

3 0
3 years ago
If there are 6 hours in a school day, 5 school days in a week, 4 school weeks in a month and 9 months in a school year, how many
MA_775_DIABLO [31]
1080, because 6x5= 30 30x4= 120 120x9= 1080 
8 0
3 years ago
Read 2 more answers
Solve.
Pavlova-9 [17]

Answer:

  (2, -3)

Step-by-step explanation:

Apparently, the equations are supposed to be ...

  • 4x +y = 5
  • 3x +y = 3

The solution for x can be found by subtracting the second equation from the first:

  (4x +y) -(3x +y) = (5) -(3)

  x = 2 . . . . . . . matches the second answer choice

Y can be found from either equation:

  y = 5 - 4x . . . . . subtract 4x from the first equation

  y = 5 -4(2) = -3

The solution is (x, y) = (2, -3).

7 0
3 years ago
Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 boys and girls in seventh grade. I
Dafna1 [17]
There are a total of 297 students in the 7th grade. Rough estimates would say that about half of that number are boys and half are girls. Asking only 50 random girls would be biased because not only would it not be all of the girls (the number of girls would be around 148 or 149) but it would also be ignoring the roughly 148 to 149 boys there are on estimate. The sample would be biased because it would be ignoring the opinions of more than half the seventh grade.
8 0
3 years ago
Read 2 more answers
All i need to know is if its a function or not (I will give branliest for a good explanation)
tankabanditka [31]

Answer:

It's fine. It is a function. The language can be very convoluted. Put simply a domain value cannot have 2 different range values.

Step-by-step explanation:

The confusing part I think, is probably the fact that -1 and 1 both have an answer of 5.

That's fine. Parabolas do that and they are functions. Two different xs can have the same value. The thing that eliminates functions is when the x value (the domain) has two different y values (the range values). Then you don't have a function.

To try and make it clearer if 1 pointed at both 3 and 5 you would not have a function.

8 0
3 years ago
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