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LUCKY_DIMON [66]
2 years ago
6

Help me on these questions it's 15points

Mathematics
2 answers:
solong [7]2 years ago
7 0
14. multiply 28 x 15
Degger [83]2 years ago
5 0
28 x 15 is 420 all you have to do is multiply
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Which number lies halfway between:<br>a) 16 and 38<br>b) 259 and 361<br>1004 and 2 012?<br>​
xxTIMURxx [149]

Answer:

Which number lies halfway between:

a) 16 and 38 = 28

b) 259 and 361 =310

1004 and 2012?

=1058

8 0
2 years ago
Please make a graph using the information below
Bogdan [553]

Answer:

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7 0
2 years ago
The table below shows the total sales by a computer salesman during a three-year period. year 1. $5,000. year 2. $8,500 year 3.
Anastasy [175]

Answer:

3000

Step-by-step explanation:

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5 0
3 years ago
Two numbers have difference of 0.7 and a sum of 1. What are the numbers?
algol [13]
We can solve this by setting up 2 equations. We can use any letters like. For now, I'll use x and y.
So now we know that    x - y = 0.7   and    x + y = 1.
Now we can eliminate one of the letters by adding or subtracting one equation from the other. I am going to eliminate y by adding the two together (the y and the -y cancel).
This gives us   2x = 1.7,    and so x = 1.7 ÷ 2 = 0.85
Finally, we can substitute x for 0.85 back into one of the original equations to figure out what y equals. I'm going to use   x + y = 1.
So now we have    0.85 + y = 1,    so y = 1 - 0.85 = 0.15

The numbers, therefore, are 0.85 and 0.15 (you can check by using the other equation).

Hope this helps!
4 0
3 years ago
What two numbers multiply to negative 8 but add to negative 7
Amiraneli [1.4K]
Let "a" and "b" be the two numbers
So a*b=-8 and a+b=-7
Therefore S=-7 and P=-8
Using (x^2)-S+P=0 => (x^2)-(-7)+(-8)=0 => (x^2)+7-8=0
By factorizing we get (x+8)(x-1)=0
So a can be either -8 or 1 and b can be 1 or -8 
Meaning that the two numbers are -8 and 1.
6 0
3 years ago
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