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3 years ago

Solve the equation. 9d + 2d + 3d – 4 = 5d

2 answers:

4 0

You add 9d+2d+3d which equals to 14d, then you would subtract 14d to each side. After you subtract 14d to each side, it should look like -4=-9d. So your answer should be 4/9=d

likoan [24]3 years ago

4 0

Answer:

Solution of the equation is d = $\frac{4}{9}$

Step-by-step explanation:

The given expression is 9d + 2d + 3d - 4 = 5d

Now we will add the like terms on the left hand side of the equation.

(9d + 2d + 3d) - 4 = 5d

14d - 4 = 5d

Now we subtract 5d on both sides of the equation.

14d - 5d - 4 = 5d - 5d

9d - 4 = 0

Now we add 4 on both the sides of the equation

9d - 4 + 4 = 0 + 4

9d = 4

Now we divide both the sides of the equation by 9.

$\frac{9d}{9}=\frac{4}{9}$

d = $\frac{4}{9}$

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12x - 16 = 68<br> Solve for x

cricket20 [7]

Answer:

x = 7

Step-by-step explanation:

12x - 16 = 68

Add 16 to each side

12x - 16+16 = 68+16

12x =84

Divide by 12

12x/12 = 84/12

x = 7

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3 years ago

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Choose Yes or No to tell whether the expressions are equivalent.

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2 years ago

Mia and her 3 friends went out for dinner at a restaurant. Total bill was $ 65.12. All friends are going to divide the bill. How

eduard

Answer:

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Step-by-step explanation:

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3 years ago

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You are hiring a limousine. One company charges a $60 reservation fee plus another $15 per hour. A second company charges a $25

anzhelika [568]

Answer:

7 hours

Step-by-step explanation:

Step one:

given data

let the total charges be y and the number of hours be x

Company A charges

$60 reservation fee plus another $15 per hour.

y=60+15x----------1

Company B charges

$25 reservation fee plus another $20 per hour

y=25+20x------------2

Step two:

equate the 2 expressions above we have

60+15x=25+20x

collect like terms

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5 0

2 years ago

A woman bought some large frames for $10 each and some small frames for $5 each add a closeout sale if she bought 20 frames for

vampirchik [111]

Answer:

The quantity of large frames is 7

The quantity of small frames is 13

Step-by-step explanation:

Given as :

The price of each large frames = $ 10

The price of each small frames = $ 5

The total number of both frames bought = 20

The price for both the frames = $ 135

Now,

Let the quantity of large frames = L

And The quantity of small frames = S

So , According to question

The total number of both frames bought = 20

Or, The quantity of large frames + the quantity of small frame = 135

Or, L + S = 20 ......A

And $ 10 L + $ 5 S = $ 135 ................B

Or, $ 10× ( L + S ) = $ 10× 20

Or, $ 10 L + $ 10 S = $ 200

( $ 10 L + $ 10 S ) - ( $ 10 L + $ 5 S ) = $ 200 - $ 135

Or , ( $ 10 L - $ 10 L ) + ( $ 10 S - $ 5 S ) = $ 65

Or, 0 + 5 S = 65

∴ S = $\frac{65}{5}$

I.e S = 13

So, The quantity of small frames = S = 13

Put the Value of S in eq A

So , L + S = 20

Or, L = 20 - S

Or, L = 20 - 13

∴ L = 7

So, The quantity of large frames = L = 7

Hence The quantity of large frames is 7

And The quantity of small frames is 13 Answer

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3 years ago