3 (n + 7) = __ + 21
Answer?

Answers

Answer 1

Answer:

3n

Step-by-step explanation:

We can see that the 3 gets distributed into the parentheses since there is a +21 on the right (3×7=21) so we also have to distribute the 3 to the n


Related Questions

What is 5x83 mentally using distributive property

Answers

Answer:

415

Step-by-step explanation:

Simplify:
√144a^2b^4

A) 12ab
B) 12a^2b^4
C) 12ab^2
D) 12b√a

Answers

Answer:

Option C

Step-by-step explanation:

[tex] \sqrt{144 {a}^{2} {b}^{4} } [/tex]can be written as[tex] \sqrt{144 \times {a}^{2} \times {b}^{4} } [/tex]

[tex] = > \sqrt{144} \times \sqrt{( {a}^{2}) } \times \sqrt{( {b}^{4}) } [/tex]

[tex] = > 12 \times {a}^{ \frac{2}{2} } \times {b}^{ \frac{4}{2} } [/tex]

[tex] = > 12a {b}^{2} [/tex]

Please help me I will give you an Brainly

Answers

Step-by-step explanation:

ok so its basically like addition the top + the bottom.

3x + 3y = 12

6x + 11y = 14

9x + 15y = 26

now u wat to cancel out

9x + 15y = 26

9                

15y = 26     y = 1.7

9x = 26      x = 2.8

i think this is right i hopw this helps

Answer:

y= -2

x= 6

there you go

I used elimination method!

Hope It Helps!!!!

what is the slope of the line?

Answers

Slope:0
Y intercept: -2
Do you still need help my guy?

19/3+___+5/2=10 4/5 I don’t know it

Answers

Answer:

Blank space= 1.96

Simplify the expression below:
3(6y - 2x)​

Answers

Answer:

18y-6x

Step-by-step explanation:

Multiply what is inside the brackets by what is outside, in this case 3.

Somebody help plz I need help

Answers

In this case, we need to substitute n with 10.

So, it is like this: f(10) = 3(10) + 4

f(10) = 3(10) + 4

f(10) = 30 + 4

f(10) = 34

PLEASE I NEED HELP WITH THIS ANSWER

Answers

Answer:

a) x = -2/3    y = -26/3 or -8 2/3

b) x = 12      y = 5

Step-by-step explanation:

a) since both equations begin with 'y =' you can set them equal to each other

4x - 6 = x - 8

3x = -2

x = -2/3

sub x value to find y:

y = 4(-2/3) - 6

   = -8/3 + (-18/3)

   = -26/3  

Need help with this math question!

Answers

Answer: "YOUR ON PROBLEM ONE !"

Step-by-step explanation:

At a party, the number of people who ate meatballs was 11 fewer than 13 of the total people. Five people ate meatballs.
Write and solve an equation to find the number of people at the party. Let x represent the number of people at the party.


B.Write a one-step equation that has the same solution ill give 25 points for an answer asap please it's due today!

Answers

Answer:

5=1/3x-11  

Step-by-step explanation:

Add eleven to each side to get 16=1/3x. Then multiply each side by three to get 48=x, so x=48.-step explanation:

Is 1.2 or 5/2 greater than 9?

Answers

Answer:

no because you can put 2 into 5/2 2 times so it would be 2 and 1/2 and 9 is bigger then that

Hey I am struggling with this problem. Can someone help me please? Thank you so much!

Answers

Answer:

To find the missing angle you have to use cosine so it would be cos^-1(26.2/27) since cosine is adjacent over hypotenuse so the missing angle x is 13.98 but rounded to the nearest tenth its approximately 14.

Step-by-step explanation:

hope this helps

find the measurement indicated in each parallelogram

Answers

QR is congruent to PS
So if QR is 17.7 PS is 17.7
Answer 3.) PS equals 17.7

Answer:

QR=PS in a parallelogram

Therefore, 17.7 is the right answer.

I need help solving this practice question​

Answers

Answer:

Answer is the 3rd one

Step-by-step explanation:

They are asking to see what other angle looks equivalent  to angle Y, so simply just look at the other angles and later you come to find that angle C is an exact match compared to angle Y.

Have a great day!

You check 20 batteries. Fourteen batteries do not have a charge. Out of the next 70 batteries that you check, how many would you expect to not have charge?

Answers

Answer:

                                                           Solution:

Check batteries=20

Battreies do not have charge=14

Out of the next batteries that you check=70

Expect to not have charge=30

Answer is 30.

Step-by-step explanation:

Number of batteries do not have charge from 20 batteries is 49 batteries

Numeric number based problem:

What information do we have?

Number of batteries do not have charge from 20 batteries = 14 batteries

Using ration of total batteries to do not have charge batteries

Number of batteries do not have charge from 70 batteries = 70[14/20]

Number of batteries do not have charge from 70 batteries = 7[7]

Number of batteries do not have charge from 20 batteries = 49 batteries

Find out more information about 'Numbers'.

https://brainly.com/question/17429689?referrer=searchResults

what is 0.41891891891892 to two significant figures?

Answers

Answer:

0. 42

Step-by-step explanation:

any number greater than 0 is significant if it's exactly 0 or less than 0 is not significant. since it's two significant figures you count the first two numbers greater than 0 which is 0.41 and we have 8 will is greater than 5 which will be rounded to 1 then rounded to 0.41 which makes it 0.42

30) Use the distributive property to solve: 5(x – 2)

Answers

5(x-2) if you use distributive property it changes to 5x-10 and I believe that’s it. You can’t solve it more

Convet: 200m into cm
and km​

Answers

Answer:

200m = 20,000 cm

200m = 0.2 km

Step-by-step explanation:

BRAINLYEST

Answers

I can’t rly see the question please make it bigger

Answer:

:)

Step-by-step explanation:

i think it's MODE 21........

Help please thanks looks at pic attached

Answers

Answer:

m || n only when the corresponding angles will be equal.

Step-by-step explanation:

Here its only given that vertical angles are equal. But it doesn't prove m || n . If the corresponding angles wouls have been equal , then only we can prove that m || n.

All of the following represent the same function except _____.


y = x - 1
{(0, 1), (2, 3), (4, 5), (7, 8)}

x y
1 0
3 2
5 4
8 7

Answers

Answer: {(0, 1), (2, 3), (4, 5), (7, 8)}

Step-by-step explanation:

For the function:  y = x - 1    (y is one less than x)

If x =1 , y= 0

if x= 3 . y= 2

If x = 5 , y= 4

If x= 8 , y= 7

So it is same as

x y

1 0

3 2

5 4

8 7

But different from {(0, 1), (2, 3), (4, 5), (7, 8)} [here x is 1 less than y]

So,  the complete statement would be : All of the following represent the same function except {(0, 1), (2, 3), (4, 5), (7, 8)} .

The sixth-grade class is competing in the school field day. There are 32 girls and 56 boys who want to participate. Each team must have the same number of girls and boys. What is the greatest number of teams that can be formed? How many boys and how many girls will be on each team?

Answers

Answer:

8 teams each team will have 4 girls and 4 boys

Step-by-step explanation:

We use GCD to solve this

the GCD of 32 and 24 = 8

8 is the greatest number of teams.

each team must have equal number of boys and girls so divided by two

8/2 = 4

4 girls and 4 boys

I have attached how to do GCD.

If you need any clarification or more explanation pls do mention at the comment section

Hope this helps and if it does pls mark as brainliest answer thx

Trina’s paycheck earnings vary directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours?

Answers

Answer:

$486.00

Step-by-step explanation:

187.15/19=11.70

11.70 x 40 = 468

Find the sum of -4a-3 and 7a-4.

Answers

Answer: 3a - 7

Step-by-step explanation:

(-4a - 3) + (7a - 4)

Combine like terms

-4a + 7a - 3 - 4

3a - 7

Hope this helped!

7 a -4 =30

Move all terms not containing  

a

to the right side of the equation.

Tap for more steps...

7

a = 34

Divide each term by  

7

and simplify.

Tap for more steps...

a = 34 7

The result can be shown in multiple forms.

Exact Form:

a = 34 7

Decimal Form:

a = 4. 857142

Mixed Number Form:

a

=

4  6/ 7

I don’t understand this

Answers

i’m pretty sure it’s the second one. good luck. i hope i helped
Number 2 would be the best one

someone please help me with this!! I will mark brainliest

Answers

25/53 would be the simplest answer

Complete the problem. Check your answer in the back of the book.
3. Joseph Lee's check register balance is $8,754.33. He compares his
statement with his check register. He notes that the bank paid him
$2.86 in interest and deducted a $1.20 service charge for bill payment.
He finds these outstanding checks and deposits:
Check 845: $751.75 Check 847: $2,455.89 Deposit: $805.14.

Answers

800.514 all is deposit

Which of the following best describes the slope of the line below?

Answers

Answer:

It would be negative

Explanation:

WORTH A BRAINLIEST

A car driving cross-country traveled 180 mites in 4 hours. At this rate of speed, how many mites further will the car travel in the next 3 hours?

Answers

Answer:

I'm sure you mean miles, but the car will travel 135 mites.

Step-by-step explanation:

(180/4)3 = 135 miles. The car will be traveling at 45 miles per hour since 180 miles divided by four hours is 45, then you can multiply that by three to get the distance the car will travel in the next three hours. A function that models this equation is f(x)=45x.

Can someone help me plz

Answers

Answer:

5/3a+2b is the answer you need to use an the ab/c on your calculator

Answer:

[tex] \frac{4}{3} a - \frac{1}{2} b + \frac{1}{3} a + \frac{5}{2} b \\ = ( \frac{4}{3} + \frac{1}{3} )a + ( \frac{5}{2} - \frac{1}{2} )b \\ = \frac{5}{3} a + \frac{4}{2} b \\ = \frac{5}{3} a + 2b \\ = \frac{5}{3}a + 2b[/tex]

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