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schepotkina [342]
3 years ago
13

Peter increased the amount of crunches he did from 32 to 36. By what percentage did Peter increase the amount of crunches he com

pleted?
A 30%
B 12.5%
C 20%
D 22.5%
Mathematics
1 answer:
gavmur [86]3 years ago
7 0

9514 1404 393

Answer:

  B 12.5%

Step-by-step explanation:

The percentage change is calculated as ...

  % change = ((new value)/(old value) -1) × 100%

  = (36/32 -1) × 100% = 1/8 × 100% = 12.5%

Peter increased his crunches by 12.5%.

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Please help!!!!
tatyana61 [14]

Answer:

Step-by-step explanation:

From the figure attached,

If the figures shown are congruent (Equal in shape and size), length of all the sides must be equal.

Therefore, sides sides CD and GH must be equal in measures.

Distance between the two points (x_1,y_1) and (x_2,y_2) is given by,

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Length of the side CD having ends C(-4, 4) and D(0, 5) will be,

CD = \sqrt{(-4-0)^2+(4-5)^2}

CD = \sqrt{(16+1)}

     = \sqrt{17}

Length of GH having ends G(0, -4) and H(4, -5) will be,

GH = \sqrt{(0-4)^2+(-4+5)^2}

      = \sqrt{16+1}

      = \sqrt{17}

Therefore, m(CD) = m(GH)

Similarly, we can prove all corresponding sides of two figures equal in measure.

This shows ABCD ≅ EFGH.

3 0
3 years ago
Which fractions are equivalent to 6/9? Select all that are equivalent. a) 2/3 b)12/15 c)8/12 d) 4/7
Neporo4naja [7]

Answer:

2/3

Step-by-step explanation:

Divide through by 3

3 0
3 years ago
Read 2 more answers
Samaria attached 165 inches of fringe material to a tablecloth if the tablecloth was in a shape of a regular pentagon how much f
Y_Kistochka [10]
35 in. because a pentagon has 5 sides and have to divide the total amount of yarn to the sides. 
4 0
3 years ago
Please help me thanks
Mariulka [41]
The answer is D.

Since the two triangles are congruent, they would have equal angles.

The reason why the other answer choices are wrong...

A) ∠S is equal to ∠Y, not ∠Z.
The angle that is equal to ∠Z is ∠T.

B) Line ST is equal to Line YZ, not Line XZ.
The Line that is equal to Line XZ is Line RT.

C) Line RS is equal to Line XY, not Line ST.
The Line that is equal to Line ST is Line YZ.



Hope this helped! Brainliest is always welcome :)
8 0
3 years ago
What’s the area of this? i really need help....50 points if u help me :)
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

We can split this up into 3 shapes.

Using the attached image:

A = (5-2)*(3)\\A = 3*3 = 9\\\\B = \frac{1}{2}(7-3)(5-2)\\B = \frac{1}{2}(4)(3)\\B = 2*3 = 6\\\\C = 7 * 2 = 14\\\\A + B + C  = 14 + 6 + 9 = 29

5 0
2 years ago
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