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2 years ago

Is y=3.6x a direct variation

Mathematics

2 answers:

Mrrafil [7]2 years ago

8 0

Yes y=3.6 is a direct variation

Ivan2 years ago

5 0

Direct variation
y varies directly as x means
y=kx where k is a constant

y=3.6x is same thing, 3.6 is constant

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Solve the equation 2(x-4)=-22

Tcecarenko [31]

Hello Lexi!

Answer: ⇒⇒⇒⇒⇒⇒ $x=-7$

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Step-by-step explanation:

First you had to divide by 2 from both sides of equation.

$\frac{2(x-4)}{2}=\frac{-22}{2}$

Simplify.

$\frac{2(x-4)}{2}=x-4$

$\frac{2(x-4)}{2}$

Divide by the numbers.

$\frac{2}{2}=1$

$=x-4$

$\frac{-22}{2}=-11$

Apply the fraction rule.

$\frac{-22}{2}$

$=-\frac{22}{2}$

Then you divide by the number.

$\frac{22}{2}=11$

$=-11$

$x-4=-11$

Add by 4 from both sides of equation.

$x-4+4=-11+4$

Simplify it should be the correct answer.

$x=-7$

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Hope this helps!

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-Charlie

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2 years ago

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IgorC [24]

Answer:

12 less than or equal to 2

Step-by-step explanation:

7 0

2 years ago

Solve the equation for x 2/3 x -1/9x+5=20

Usimov [2.4K]

Answer: X = 45

This may help.

6 0

3 years ago

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According to the ratio of the age, if Rs. 216 is divided to the girls of age 8, 9 ad 10 yearsHow much money will each get

SSSSS [86.1K]

9514 1404 393

Answer:

8 years: Rs. 64
9 years: Rs. 72
10 years: Rs. 80

Step-by-step explanation:

The sum of ages is 8+9+10 = 27, so each year of age is rewarded by ...

216/27 = 8 . . . Rs

Then age 8 gets 8(Rs. 8) = Rs. 64

age 9 gets 9(Rs. 8) = Rs. 72

age 10 gets 10(Rs. 8) = Rs. 80

3 0

2 years ago

Part of arianna’s earnings are based on a 5% commission rate. At the end of the day arianna earned 14.98 in commission. How much

Katarina [22]

Arianna sold for $ 299.6

Solution:

Given that, Part of Arianna’s earnings are based on a 5% commission rate

At the end of the day arianna earned 14.98 in commission

Therefore,

Commission earned = $ 14.98

Commission rate = 5 %

Let "x" be the amount that Arianna sell that day

Therefore, according to question,

5 % of amount earned = 14.98

5 % of "x" = 14.98

Solve the above equation for "x"

$5 \% \times x = 14.98\\\\\frac{5}{100} \times x = 14.98\\\\5x = 14.98 \times 100\\\\5x = 1498\\\\Divide\ both\ sides\ of\ equation\ by\ 5\\\\x = 299.6$

Thus arianna sold for $ 299.6

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2 years ago