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Oduvanchick [21]
2 years ago
8

CAN SOMEONE PLEASE HELP ITS DUE TODAY

Mathematics
2 answers:
nikdorinn [45]2 years ago
7 0

Answer:

n = 6

Step-by-step explanation:

\frac{ {5}^{n}  \times  {5}^{3} }{ {5}^{7} }  =  {5}^{2}  \\  \\  \implies \: \frac{ {5}^{n + 3}  }{ {5}^{7} } =  {5}^{2} \\  \\  \implies \:  {5}^{n + 3 - 7}  =  {5}^{2} \\  \\  \implies \:  {5}^{n  - 4}  =  {5}^{2} \\  \\  \implies \:n - 4 = 2 \\  \\   \implies \:n = 4 + 2 \\  \\  \implies \:n = 6

rodikova [14]2 years ago
4 0

\qquad\qquad\huge\underline{{\sf Answer}}♨

Let's solve ~

\qquad \sf  \dashrightarrow \: \frac{5 {}^{n}  \times  {5}^{3} }{5 {}^{7} }  =  {5}^{2}

\qquad \sf  \dashrightarrow \: \frac{5 {}^{n + 3}    {}^{} }{5 {}^{7} }  =  {5}^{2}

\qquad \sf  \dashrightarrow \:5 {}^{n + 3 - 7} =  {5}^{2}

\qquad \sf  \dashrightarrow \:5 {}^{n - 4} =  {5}^{2}

\qquad \sf  \dashrightarrow \:{}{n - 4} =  {2}

\qquad \sf  \dashrightarrow \:n = 2 + 4

\qquad \sf  \dashrightarrow \:n = 6

Hence, value of n is 6

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Veronika [31]
First you have to multiply 1,500 by 65%.  A way to do that is 1,500 x 65 and then divide by 100.
So 1,500 x 65 is 97,500.
97,500 divided by 100 is 975.
The final answer is that there are 975 girls in the school.  

3 0
3 years ago
20 - 4x = 2(4 - 8x) This needs solving
Olenka [21]

20 - 4x = 2(4 - 8x)

Make sure to do the parentheses first or factor out first

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3 years ago
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Answer:

They are similar by the definition of similarity in terms of a dilation.

Step-by-step explanation:

The first step is finding the sides of each triangle.

In triangle GHI, we have that:

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IG = sqrt((2-8)^2 + (4-4)^2) = 6

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JK = sqrt((2-1)^2 + (3-1)^2) = 2.2361

KL = sqrt((4-2)^2 + (1-3)^2) = 2.8284

LJ = sqrt((1-4)^2 + (1-1)^2) = 3

The triangles are not congruent, because the sides are different

They are similar, because their sides have a proportion (sides of GHI are 2 times the sides of JKL). If they are similar, they have the same angles.

The ratio of their corresponding sides is 1:2, not 1:3

The ratio of their corresponding angles is 1:1, not 1:3

3 0
3 years ago
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Answer:The system of equations to describe the situation are

c + y = 8

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Step-by-step explanation:

Let c represent the number of shirts.

Let y represent the number of caps.

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c + y = 8 - - - - - - - - - - -1

They want to spend exactly $36 on the shirts and caps. Shirts cost $6 each and caps cost $3 each. This means that

6c + 3y = 36 - - - - - - - - - - 2

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