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skelet666 [1.2K]

3 years ago

13

At a state park, 3 children and 5 adults paid a total of $48 for their entrance fees, whereas 4 children and 2 adults paid a tot

al of $22. What is the entrance fee for 1 child? Please help me

2 answers:

Sonbull [250]3 years ago

5 0

The children is $6 and the adults is $10 <3

Arada [10]3 years ago

3 0

The kids are $6 and the adults are $10

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The percentage change of a ratio of two variables is approximately the percentage change in the numerator _____ the percentage c

olchik [2.2K]

Answer:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator <u>minus</u> the percentage change in the denominator."

Step-by-step explanation:

The percent change in a number is determined by dividing the difference between the new number and original number by the original number and multiplying the result by 100.

Suppose the original ratio of two numbers is: $\frac{25}{100}$ .

And the new ratio is: $\frac{75}{100}$

The percent change is:

$Change\%=\frac{75-25}{100}\times100=\frac{50}{100}\times100=50\%$

Thus, the complete statement is:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator <u>minus</u> the percentage change in the denominator."

8 0

3 years ago

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-1 3/7 • (-3 2/3) = ?<br><br> A: 3 2/7<br> B: 5 5/21<br> C: 11<br> D: -5 5/21

Anna35 [415]

[|] Answer [|]

$\boxed{5 \ \frac{5}{21}}$

[|] Explanation [|]

$-1 \ \frac{3}{7}$ * $-3 \frac{2}{3}$

-----------

-----------

Convert Fractions To Mixed Numbers:

$-1 \ \frac{3}{7}$ = $\frac{-10}{7}$

$-3 \ \frac{2}{3}$ = $\frac{-11}{3}$

Multiply Across:

$\frac{-10 \ * \ -11}{7 * 3}$

= $\frac{110}{21}$

Simplify:

= $5 \ \frac{5}{21}$

$\boxed{[|] \ Eclipsed \ [|]}$

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3 years ago

Mountain View Middle School students work on square desktops. The area of the square desk surface is 4 square feet. What is the

ahrayia [7]

Answer:

2 Feet

Step-by-step explanation:

The area is found by multiplying length by width. Since its a square the length and width are the same and it would have to be 2.

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Sydney purchases a new car for $27,500. The value of the car decreases at rate of 15% each year. In approximately will the $1,25

Pani-rosa [81]

Answer:

Time taken n = 19 years (Approx)

Step-by-step explanation:

Given:

Amount of car P = $27,500

Decrease rate r = 15% = 0.15

Final amount A = $1,254

Find:

Time taken n

Computation:

A = P[1-r]ⁿ

1,254 = 27,500[1-0.15]ⁿ

0.0456 = [0.85]ⁿ

Time taken n = 19 years (Approx)

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In science class, the girl to boy ratio is 3 to 7. If there are 50 students in the class, how many are boys

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Answer:

there are 35 boys in the class

Step-by-step explanation:

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