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Y_Kistochka [10]
3 years ago
11

I need help please if you can help I will give you 10 points

Mathematics
1 answer:
valentina_108 [34]3 years ago
7 0

Answer:

option A

Step-by-step explanation:

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The weight of a boy was 15kg last year. If his weight increases by 3kg this year, find the percentage increase in his weight.
WARRIOR [948]
This year = 18kg
18 x .3= 5.4
The percentage change would be 5.4%. If it needs to be rounded by the nearest tenth, then it would be 5%.
I’m pretty confident this is the answer but I’m not 100% sure. I hope this helps!
4 0
3 years ago
Number 7: What do the lines on the shape mean
Serjik [45]
The lines mean that they are parallel

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4 years ago
Holly begins with 1 penny in her piggy bank. She adds 2 pennies on day 1, 4 pennies on day 2, and 8 pennies on day 3. She contin
torisob [31]

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The answer is c and b

Step-by-step explanation:

I took the test

5 0
3 years ago
Using the points [164,166]and[173,174] find the slope
Lana71 [14]

Answer:

8/9

Step-by-step explanation:

The equation to find a slope is y2-y1/x2-x1=m. (m is the slope)

174-166/173-164

8/9

So the slope is 8/9.

8 0
3 years ago
B. Using your answer in letter a or write the equation of the line in the form Ax + By = C
Svetradugi [14.3K]

Answer:

Step-by-step explanation:

(1, 5.5) ; (2, 9)

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\

         = \frac{9-5.5}{2-1}\\\\=\frac{3.5}{1}\\\\= 3.5

         = 7/2

m = 7/2 ; (2 , 9)

y - y1 =m(x -x1)

y - 9 = \frac{7}{2}(x- 2)\\\\y - 9 = \frac{7}{2}x - \frac{7}{2}*2\\\\y -9 = \frac{7}{2}x - 7\\\\y = \frac{7}{2}x - 7 + 9\\\\y = \frac{7}{2}x + 2

Multiply the equation  by 2

2y = 2*\frac{7}{2}x + 2 *2\\\\2y = 7x + 4\\\\7x - 2y = -4\\

         

4 0
3 years ago
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