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padilas [110]
3 years ago
7

If y=26−(3x+2), then x = ?

Mathematics
1 answer:
Anna71 [15]3 years ago
3 0

Answer:

-1/3y +8 = x

Step-by-step explanation:

y=26−(3x+2)

Distribute

y = 26 -3x-2

Combine like terms

y = 24 -3x

Subtract 24 from each side

y -24 = -3x

Divide each side by -3

y / -3 -24/-3 = -3x/-3

-1/3y +8 = x

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Identify is this is percent increase or percent decrease, then calculate percentage
vlabodo [156]

<em>Last year the chess club had 30 members. This year the club has 24 members. </em>

Last year, the chess club had 30 members. This year, the club has 24 members. Since this year had less than last year ( 30 > 24), the percent will be decreasing.

To find the percent decrease, you have to use the following formula.

\frac{Difference}{Original} \times 100

Difference refers to the difference between the two numbers, 24 and 30. The difference between 24 and 30 is 6. Original refers to the original number, which is last year's amount of members in the chess group. Therefore, original = 30.

Substitute the numbers into the formula.

\frac{Difference}{Original} =\frac{6}{30} =0.2

To convert the decimal to a fraction, multiply the decimal by 100.

0.2 \times 100 = 20 \%

The answer is the number of chess members decreased by 20%.

____

Since I started off by identifying whether it was decreasing or increasing, I did the work a bit differently. When finding the difference, you would usually subtract 30 from 24, which results in -6. Above I used 6, but if you used -6, you would end up with a result of -20%, which means it decreased by 20%. They bot end up with the same result, but you don't always have to first identify whether it's decreasing or increasing.

____

3 0
3 years ago
What is the median of 90,30,20,30,60,30,80
MariettaO [177]

Answer:

you have an odd number, divide by 2 and round up to get the position of the median number.

Step-by-step explanation:

you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

4 0
3 years ago
Read 2 more answers
Simplify fully<br> A) <br> X^7 / X^3 <br><br><br> B)<br> Y^5 / Y^4
DENIUS [597]

Hi,

\frac{x^{a} }{x^{b} } =x^{a-b}

a)

\frac{x^{7} }{x^{3} }= x^{7-3} = x^{4}

b)

\frac{y^{5} }{y^{4} } = y^{5-4} = y^{1} = y

;)

8 0
2 years ago
A store in Ashland purchased a cat calendar at a cost of $1.30 and marked it up 100%. Later on, Fernando bought the cat calendar
Arada [10]

Answer:

$2.99

Step-by-step explanation:

Given that:

Purchase price of cat calendar = $1.30

Markup = 100%

Hence, price at which the cat calendar was sold :

1.30 + 100%(1.35)

$1.30 + $1.30 = $2.60

Sales tax = 15%

Amount paid as sales. tax _

15% * 2.60 = $0.39

Total amount paid :

$2.60 + 0.39 = $2.99

7 0
3 years ago
Solve for x: 1/8 = x/12 I don't need work shown just need answer<br>​
Dimas [21]

Answer:

3/2 =x

Step-by-step explanation:

1/8 = x/12

Solve using cross products

1 * 12 = 8x

12 = 8x

Divide each side by 8

12/8 =8x/8

3/2 =x

4 0
3 years ago
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