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3 years ago

Which expression is equivalent to 5(3 + 4k ) + 3(4 +k )?

2 answers:

8 0

Its gonna be C you need to multiply 5•3=15and then 5•4k=20k and then multiple 3•4=12 and 3•k= 3k and then you want to combine like terms being add the k's and the regular numbers making it 27+23k

mylen [45]3 years ago

3 0

Answer:

27+23K

Step-by-step explanation:

Use distributive property

15+20k+12+3K

Now combine like terms

23K+27

thats your answer

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Graph the solutions of the linear inequality 3x + 3y > 6 .

cluponka [151]

Here you go, i didn’t know what other way to graph it. but i used desmos!

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3 years ago

Asa saves dimes and quarters so that he will have exact change for he bus. He dabs and then dumps the container that he has been

koban [17]

Asa has 15 dimes and 32 quarters.

Step-by-step explanation:

Given,

Total coins = 47

Worth of coins = $9.50 = 9.50*100 = 950 cents

1 dime = 10 cents

1 quarter = 25 cents

Let,

Number of dimes = x

Number of quarters = y

According to given statement;

x+y=47 Eqn 1

10x+25y=950 Eqn 2

Multiplying Eqn 1 by 10

$10(x+y=47)\\10x+10y=470\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(10x+25y)-(10x+10y)=950-470\\10x+25y-10x-10y=480\\15y=480$

Dividing both sides by 15

$\frac{15y}{15}=\frac{480}{15}\\y=32$

Putting y=32 in Eqn 1

$x+32=47\\x=47-32\\x=15$

Asa has 15 dimes and 32 quarters.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

7 0

4 years ago

The distance AB= [?] Round to the nearest tenth.

Law Incorporation [45]

Answer:

<h3>Step-by-step explanation:</h3>

A = ( -2, 1 )

B = ( 1, -1 )

$\boxed{\bf x_1 : - 2}$ $\boxed{\bf x_2 : 1}$

$\boxed{\bf y_1 : 1}$ $\boxed{\bf y_2 : - 1}$

______________________________

$\sf d = \sqrt{(x_2 -x_1) ^{2} + ( y_2 - y_1) ^{2} }$
$\sf d = \sqrt{(1 - ( - 2)) ^{2} + ( - 1 - 1) ^{2} }$
$\sf d = \sqrt{ {3}^{2} + {( - 2)}^{2} }$
$\sf d = \sqrt{(9 + 4)}$
$\sf d = \sqrt{13}$
$\sf d = 3.6$

______________________________

7 0

2 years ago

Steve and Chris are working together to weed a garden plot. Steve weeded of the plot. Chris weeded of the plot.

Radda [10]

I'm pretty sure its A.

7 0

4 years ago

Read 2 more answers

Michael swims 30 meters north and then turns and swims 50 meters diagonally across a

Keith_Richards [23]

Answer:he swam 120 meters

Step-by-step explanation:

Using Pythagoras rule x^2=50^2-30^2

X^2=2500-900

X^2=1600

X=√(1600)

X=40

Total distance=30+50+40

Total distance=120 meters

6 0

4 years ago