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Serhud [2]
2 years ago
11

The necklace charm below consists of two triangles with the same dimensions. Which equation represents the area of the necklace

charm?
A. A = 1/2(2 1/2 x 1 1/4)
B. A = 2 1/2 x 1 1/4
C. 1/2(2 1/2) x 1 1/4 x 2 1/2
D. A = (2 1/2 x 1 1/4) x 2
Mathematics
1 answer:
siniylev [52]2 years ago
7 0
The correct answer is D
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4z +  2 = 10z - 1

Add sides 1

4z  + 2  + 1 = 10z - 1 + 1

4z + 3 = 10z

Subtract sides 4z

- 4z + 4z + 3 =  - 4z + 10z

3 = 6z

6z = 3

Divide sides by 6

\frac{6z}{6}  =  \frac{3}{6}  \\

z =  \frac{1}{2}  \\

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3y = y + 3

Subtract sides y

- y + 3y =  - y + y + 3

2y = 3

Divide sides by 2

\frac{2y}{2}  =  \frac{3}{2}  \\

y =  \frac{3}{2}  \\

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Thus the correct answer is :

a) \: y =  \frac{3}{2}  \: , \: z =  \frac{1}{2}  \\

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4 0
3 years ago
Please help me it is very much appreciated
pshichka [43]
<h2>C</h2>

Hope it helps you!

-miraculousfanx-

7 0
3 years ago
Jafar will get $12400 more if his salary is increased by 31%. Jafar's salary is 20% less of his colleague Ali's salary. What is
Iteru [2.4K]

Answer:

Ali's salary is $50000.

Step-by-step explanation:

Let Jafar's salary be x.

(31/100)*x = 12400

x = (12400*100)/31

x = 400*100

x = $40000

Let Ali's salary be y.

y-[(20/100)*y] = 40000

y-(y/5) = 40000

(5y-y)/5 = 40000

4y = 200000

y = $50000

7 0
3 years ago
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