MATHEMATICS HIGH SCHOOL

A video game store sold 135 copies of a new release game in June. In July, they sold 108 copies of the same game. What is the percent decrease in the sales of this game from June to July?

Answers

Answer 1

Answer: the percent decrease is 20%

Answer 2

Answer:

percent decrease: decrease/old price * 100%

Subtract:

135 - 108 = 27

Fill into formula,

= 27/135 * 100%

= 1/5 * 100%

= 0.20 * 100%

= 20%

therefore, the percent decrease is 20%!

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The ratio of chaperones to students on a field trip is 2:7. There are 14 chaperones on the field trip. In all, how many chaperones and students are on the field trip

Which model represents the sum given above

Answers

Answer:

Option a. z

Explanation:

Because in z it represents 5/8 + 3/8 + 1/8.

Look at the color in z .

Simplify square root of 5 multiplied by the cube root of 5.5 to the power of 5 over 6
5 to the power of 1 over 6
5 to the power of 2 over 3
5 to the power of 7 over 6

Answers

Answer:

5 to the power of 5 over 6 = $5^{(5)/(6)}$

Step-by-step explanation:

1)Let's define some properties about exponent:

$a^{(b)/(c)}=\sqrt[c]{a^(b)}$

For example :

$4^{(1)/(2)}=\sqrt[2]{4^(1)}=\sqrt[2]{4}=√(4)=2$

$2^{(6)/(3)}=\sqrt[3]{2^(6)}=\sqrt[3]{64}=4$

2)Another property of exponent is :

$(a^(b)).(a^(c))=a^(b+c)$

For example :

$(4^(2)).(4^(3))=4^(2+3)=4^(5)=1024$

This means that when we have two exponential functions with the same base that are multiplying between them, we can sum the exponents in order to make a new exponential function with the same base.

Using this two properties we can solve the problem.