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lina2011 [118]
3 years ago
9

Antonio draws a square that has a side lenght of 13 centimetrs what is the perimeter of antonios square? write an equation to sh

ow your work
Mathematics
1 answer:
klasskru [66]3 years ago
8 0
I believe it would be 13+13+13+13=52 because all side of a square are equal
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Mean of four numbers a ,b, c, and d is 8 and mean of seven
Nana76 [90]

Answer:

  • 17 1/3 or 17.33

Step-by-step explanation:

<u>Mean of four numbers a, b, c, and d is 8:</u>

  • (a + b + c + d)/4 = 8  
  • ⇒ a + b + c + d = 32

<u>Mean of seven numbers x, y, z, a, b, c and d is 12:</u>

  • (x + y + z + a + b + c + d)/7 = 12

<u>Substitute the sum of 4 numbers:</u>

  • x + y + z + 32 = 7*12
  • x + y + z = 84 - 32
  • x + y + z = 52

<u>Mean of x, y and z is:</u>

  • 52/3 = 17 1/3 or 17.33
4 0
2 years ago
$14.65 plus what equals $65.00?
ziro4ka [17]

79.65

I used a calculator

5 0
2 years ago
Read 2 more answers
write an equation of the line with the following information. Through (4,1) and perpendicular to y=1/3x +3
Yakvenalex [24]
Perpendicular means the two lines' slopes are negative reciprocal to each other. the slope of the given line is 1/3, therefore the slope of the perpendicular line is -3/1, which is -3
use the point-slope form: the given point is (4,1), so (y-1)=-3(x-4)
you can stop right here or you can write it into slope intercept form:
y-1=-3x+12
y=-3x+13
5 0
3 years ago
Find 93 • 87 using mental math.
bagirrra123 [75]
Okay so start with multiplying 93 * 7

So 3 x 7= 21

9 X 7 +63, carry the 2 = 651


Then 8 x 93
Remember that first is a zero.
8 X 3= 24
8 X 9= 72, carry the 2= 74
So that is 7440
Now
  0651
+7440
  8091
And that's the answer
7 0
3 years ago
Read 2 more answers
What is the slope and y intercept of y=-x+3
sattari [20]
Y intercept when x =0

<span> y=-x+3
 y = -0 +3
 y = 3

</span><span> the slope is -1 </span>
<span>
</span>
8 0
3 years ago
Read 2 more answers
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