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Nat2105 [25]
3 years ago
15

What is the answer to 7/8-(-1/10)+(-3/5)

Mathematics
1 answer:
morpeh [17]3 years ago
4 0

Answer:

3/8

Step-by-step explanation:

Find and apply the LCD.  In this case we have the three denominators 8, 10 and 5, which in factored form are 2(4), 2(5) and 1(5).  The factors that make up the LCD are 2, 4 and 5, or 40.  Note that 8, 10 and 5 all divide evenly into 40.

So our expression, 7/8-(-1/10)+(-3/5), can be rewritten as:

35/40 + 4/40 - 24/40, which simplifies first to 39/40 - 24/40, and then to:

15/40.

This 15/40 reduces to 3/8.

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Find all the powers of 4 in the range 4 Through 1000
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(4⁰  =  1  too small)

4¹  =  4

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4⁴ = 256

(4⁵ = 1,024  too big)

7 0
3 years ago
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If angle JKM= 15x-48 and angle L= 5x+12 and angle M= 40, find angle MKL
horrorfan [7]
JKM = M + L
15x - 48 = 40 + 5x + 12
10x - 48 = 52
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JKM = 15(10) - 48 = 102

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180 = 102 + MKL
MKL = 180 - 102 = 78
5 0
3 years ago
Which area model represents 0.4 x 0.7 = 0.28?​
sammy [17]

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the one with pink and white at the top, and the same one with purple and blue on the bottom

Step-by-step explanation:

8 0
2 years ago
A. x-int:-0.5,y-int:1<br>B. x-int:0.5,y-int:1<br>C. x-int:-0.5,y-int:-1<br>D. x-int:1,y-int:0.5
hodyreva [135]
The correct answer is:  [D]:  " <span>x-int : 1 ,  y-int:  0.5  " .
_____________________________________________________
Note:
_____________________________________________________
The "x-intercept" refers to the point(s) at which the the graph of a function (which is a "line", in this case) cross(es) the "y-axis".  

In other words, what is (are) the point(s) of the graph at which "x = 0<span>" ?
</span>
By examining the graph, we see that when " x = 0" ; y is equal to:  "1<span>" .
</span>
So; the "x-intercept" is at point:  "(0, 1)" ; or, we can simply say that the 
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_________________________________________________________</span>  Note:
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The "y-intercept" refers to the point(s) at which the the graph of a function (which is a line, in this case) cross(es) the "x-axis".  

In other words, what is (are) the point(s) of the graph at which " y = 0 <span>" ?
</span>
By examining the graph, we see that when " y = 0 " ; x  is equal to:  "0.5<span>" .
</span>
So; the "x-intercept" is at point:  "(0.5, 0)" ; or, we can simply say that the 
   "y-intercept" is:  "0.5 " .<span>
______</span>_________________________________________________
This would correspond to:<span>
_______________________________________________________
           Answer choice:  [D]:  </span>" x-int: 1 , y-int: 0.5  " .
_______________________________________________________
     {that is;  The "x-intercept" is: "0" ; and the "y-intercept" is:  "0.5 ".} .
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5 0
3 years ago
What is the greatest common factor of 8m, 36m", and 12?
wlad13 [49]

Answer: 4

Step-by-step explanation:

8m = 2*2*2*m

36m^3 = 2*2*3*3*m*m*m

12 = 2*2*3

GCF=2*2

Hope this helps!!

4 0
3 years ago
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