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2 years ago

13

Pierson's Pet Palace has an 85 gallon fish tank. When it needs to be cleaned, it can be drained at a rate of 4 gallons per minut

e. Write an equation. help pls

1 answer:

alisha [4.7K]2 years ago

3 0

Answer:

Step-by-step explanation:

The time it takes to empty the tank = 85/4 + 0.25 = 21.25 minutes.

- because it takes 21 minutes to empty 84 gallons and the last gallon takes

1/4 of a minute.

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Each CD at a music store is sold for $10. If n represents the number of CDs sold, which equation could be used to find the total

Art [367]

Answer:

10n = d

Step-by-step explanation:

We know that

Each CD is sold for 10 dollars

The music store has sold n amount of CD's

The total number of dollars 'd' depends on how many CD's were sold

The equation is: 10n = d

Hope this helps!

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3 years ago

Write each answer in Scientific notation 8x10^3 + 6.45 x 10^4

ELEN [110]

Answer:

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Step-by-step explanation:

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3 years ago

Help me please please help

Dmitrij [34]

1) 8y + 9 2) 2n + 4 3) 3d + 5h

rearrange the equations and combine like terms. combine the terms with the same variables and add / subtract them.

for example number 1:

9y - 11 + 20 - y

is the same thing as

<em>9y - y</em> <u>+ 20 - 11</u>

and now you can easily combine them:

<em>8y</em> + <u>9</u>

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4 0

3 years ago

The graph of a line has a slope of -3 and passes through the point (-6,-4).

prohojiy [21]

Answer:

(A) y+4=-3(x+6)

Step-by-step explanation:

The point-slope form of the equation of a line whose slope is m and passes through the point $(x_1, y_1)$ is: $y-y_1=m(x-x_1)$

Given the point: $(x_1, y_1)=(-6,-4)$

Slope, m=-3

$x_1=-6\\y_1=-4$

Substituting these values into: $y-y_1=m(x-x_1)$ , we obtain the point slope form of the equation:

$y-(-4)=-3(x-(-6))\\\\y+4=-3(x+6)$

The correct option is A.

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4 years ago

Simplify 9x - 4 + 3x

rewona [7]

Answer:

$4(3x - 1)$

Step-by-step explanation:

$9x - 4 + 3x$

Adding 9x & 3x gives 12x.

$= > 12x - 4$

Now taking 4 common from both the terms , we get :-

$4(3x - 1)$

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3 years ago